18697140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 288

約数和(自身を含む): 75479040

約数和(自身を除く): 56781900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 19, 20, 21, 22, 28, 30, 33, 35, 36, 38, 42, 44, 45, 55, 57, 60, 63, 66, 70, 71, 76, 77, 84, 90, 95, 99, 105, 110, 114, 126, 132, 133, 140, 142, 154, 165, 171, 180, 190, 198, 209, 210, 213, 220, 228, 231, 252, 266, 284, 285, 308, 315, 330, 342, 355, 380, 385, 396, 399, 418, 420, 426, 462, 495, 497, 532, 570, 627, 630, 639, 660, 665, 684, 693, 710, 770, 781, 798, 836, 852, 855, 924, 990, 994, 1045, 1065, 1140, 1155, 1197, 1254, 1260, 1278, 1330, 1349, 1386, 1420, 1463, 1491, 1540, 1562, 1596, 1710, 1881, 1980, 1988, 1995, 2090, 2130, 2310, 2343, 2394, 2485, 2508, 2556, 2660, 2698, 2772, 2926, 2982, 3124, 3135, 3195, 3420, 3465, 3762, 3905, 3990, 4047, 4180, 4260, 4389, 4473, 4620, 4686, 4788, 4970, 5396, 5467, 5852, 5964, 5985, 6270, 6390, 6745, 6930, 7029, 7315, 7455, 7524, 7810, 7980, 8094, 8778, 8946, 9372, 9405, 9443, 9940, 10934, 11715, 11970, 12141, 12540, 12780, 13167, 13490, 13860, 14058, 14630, 14839, 14910, 15620, 16188, 16401, 17556, 17892, 18810, 18886, 20235, 21868, 21945, 22365, 23430, 23940, 24282, 26334, 26980, 27335, 28116, 28329, 29260, 29678, 29820, 32802, 35145, 37620, 37772, 40470, 43890, 44517, 44730, 46860, 47215, 48564, 49203, 52668, 54670, 56658, 59356, 60705, 65604, 65835, 70290, 74195, 80940, 82005, 84987, 87780, 89034, 89460, 94430, 98406, 103873, 109340, 113316, 121410, 131670, 133551, 140580, 141645, 148390, 164010, 169974, 178068, 188860, 196812, 207746, 222585, 242820, 246015, 263340, 267102, 283290, 296780, 311619, 328020, 339948, 415492, 424935, 445170, 492030, 519365, 534204, 566580, 623238, 667755, 849870, 890340, 934857, 984060, 1038730, 1246476, 1335510, 1558095, 1699740, 1869714, 2077460, 2671020, 3116190, 3739428, 4674285, 6232380, 9348570, 18697140]

約数ペア:

[(1, 18697140), (2, 9348570), (3, 6232380), (4, 4674285), (5, 3739428), (6, 3116190), (7, 2671020), (9, 2077460), (10, 1869714), (11, 1699740), (12, 1558095), (14, 1335510), (15, 1246476), (18, 1038730), (19, 984060), (20, 934857), (21, 890340), (22, 849870), (28, 667755), (30, 623238), (33, 566580), (35, 534204), (36, 519365), (38, 492030), (42, 445170), (44, 424935), (45, 415492), (55, 339948), (57, 328020), (60, 311619), (63, 296780), (66, 283290), (70, 267102), (71, 263340), (76, 246015), (77, 242820), (84, 222585), (90, 207746), (95, 196812), (99, 188860), (105, 178068), (110, 169974), (114, 164010), (126, 148390), (132, 141645), (133, 140580), (140, 133551), (142, 131670), (154, 121410), (165, 113316), (171, 109340), (180, 103873), (190, 98406), (198, 94430), (209, 89460), (210, 89034), (213, 87780), (220, 84987), (228, 82005), (231, 80940), (252, 74195), (266, 70290), (284, 65835), (285, 65604), (308, 60705), (315, 59356), (330, 56658), (342, 54670), (355, 52668), (380, 49203), (385, 48564), (396, 47215), (399, 46860), (418, 44730), (420, 44517), (426, 43890), (462, 40470), (495, 37772), (497, 37620), (532, 35145), (570, 32802), (627, 29820), (630, 29678), (639, 29260), (660, 28329), (665, 28116), (684, 27335), (693, 26980), (710, 26334), (770, 24282), (781, 23940), (798, 23430), (836, 22365), (852, 21945), (855, 21868), (924, 20235), (990, 18886), (994, 18810), (1045, 17892), (1065, 17556), (1140, 16401), (1155, 16188), (1197, 15620), (1254, 14910), (1260, 14839), (1278, 14630), (1330, 14058), (1349, 13860), (1386, 13490), (1420, 13167), (1463, 12780), (1491, 12540), (1540, 12141), (1562, 11970), (1596, 11715), (1710, 10934), (1881, 9940), (1980, 9443), (1988, 9405), (1995, 9372), (2090, 8946), (2130, 8778), (2310, 8094), (2343, 7980), (2394, 7810), (2485, 7524), (2508, 7455), (2556, 7315), (2660, 7029), (2698, 6930), (2772, 6745), (2926, 6390), (2982, 6270), (3124, 5985), (3135, 5964), (3195, 5852), (3420, 5467), (3465, 5396), (3762, 4970), (3905, 4788), (3990, 4686), (4047, 4620), (4180, 4473), (4260, 4389)]