18784920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:158

約数の個数: 256

約数和(自身を含む): 74649600

約数和(自身を除く): 55864680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 19, 20, 21, 22, 24, 28, 30, 33, 35, 38, 40, 42, 44, 55, 56, 57, 60, 66, 70, 76, 77, 84, 88, 95, 105, 107, 110, 114, 120, 132, 133, 140, 152, 154, 165, 168, 190, 209, 210, 214, 220, 228, 231, 264, 266, 280, 285, 308, 321, 330, 380, 385, 399, 418, 420, 428, 440, 456, 462, 532, 535, 570, 616, 627, 642, 660, 665, 749, 760, 770, 798, 836, 840, 856, 924, 1045, 1064, 1070, 1140, 1155, 1177, 1254, 1284, 1320, 1330, 1463, 1498, 1540, 1596, 1605, 1672, 1848, 1995, 2033, 2090, 2140, 2247, 2280, 2310, 2354, 2508, 2568, 2660, 2926, 2996, 3080, 3135, 3192, 3210, 3531, 3745, 3990, 4066, 4180, 4280, 4389, 4494, 4620, 4708, 5016, 5320, 5852, 5885, 5992, 6099, 6270, 6420, 7062, 7315, 7490, 7980, 8132, 8239, 8360, 8778, 8988, 9240, 9416, 10165, 11235, 11704, 11770, 12198, 12540, 12840, 14124, 14231, 14630, 14980, 15960, 16264, 16478, 17556, 17655, 17976, 20330, 21945, 22363, 22470, 23540, 24396, 24717, 25080, 28248, 28462, 29260, 29960, 30495, 32956, 35112, 35310, 40660, 41195, 42693, 43890, 44726, 44940, 47080, 48792, 49434, 56924, 58520, 60990, 65912, 67089, 70620, 71155, 81320, 82390, 85386, 87780, 89452, 89880, 98868, 111815, 113848, 121980, 123585, 134178, 141240, 142310, 156541, 164780, 170772, 175560, 178904, 197736, 213465, 223630, 243960, 247170, 268356, 284620, 313082, 329560, 335445, 341544, 426930, 447260, 469623, 494340, 536712, 569240, 626164, 670890, 782705, 853860, 894520, 939246, 988680, 1252328, 1341780, 1565410, 1707720, 1878492, 2348115, 2683560, 3130820, 3756984, 4696230, 6261640, 9392460, 18784920]

約数ペア:

[(1, 18784920), (2, 9392460), (3, 6261640), (4, 4696230), (5, 3756984), (6, 3130820), (7, 2683560), (8, 2348115), (10, 1878492), (11, 1707720), (12, 1565410), (14, 1341780), (15, 1252328), (19, 988680), (20, 939246), (21, 894520), (22, 853860), (24, 782705), (28, 670890), (30, 626164), (33, 569240), (35, 536712), (38, 494340), (40, 469623), (42, 447260), (44, 426930), (55, 341544), (56, 335445), (57, 329560), (60, 313082), (66, 284620), (70, 268356), (76, 247170), (77, 243960), (84, 223630), (88, 213465), (95, 197736), (105, 178904), (107, 175560), (110, 170772), (114, 164780), (120, 156541), (132, 142310), (133, 141240), (140, 134178), (152, 123585), (154, 121980), (165, 113848), (168, 111815), (190, 98868), (209, 89880), (210, 89452), (214, 87780), (220, 85386), (228, 82390), (231, 81320), (264, 71155), (266, 70620), (280, 67089), (285, 65912), (308, 60990), (321, 58520), (330, 56924), (380, 49434), (385, 48792), (399, 47080), (418, 44940), (420, 44726), (428, 43890), (440, 42693), (456, 41195), (462, 40660), (532, 35310), (535, 35112), (570, 32956), (616, 30495), (627, 29960), (642, 29260), (660, 28462), (665, 28248), (749, 25080), (760, 24717), (770, 24396), (798, 23540), (836, 22470), (840, 22363), (856, 21945), (924, 20330), (1045, 17976), (1064, 17655), (1070, 17556), (1140, 16478), (1155, 16264), (1177, 15960), (1254, 14980), (1284, 14630), (1320, 14231), (1330, 14124), (1463, 12840), (1498, 12540), (1540, 12198), (1596, 11770), (1605, 11704), (1672, 11235), (1848, 10165), (1995, 9416), (2033, 9240), (2090, 8988), (2140, 8778), (2247, 8360), (2280, 8239), (2310, 8132), (2354, 7980), (2508, 7490), (2568, 7315), (2660, 7062), (2926, 6420), (2996, 6270), (3080, 6099), (3135, 5992), (3192, 5885), (3210, 5852), (3531, 5320), (3745, 5016), (3990, 4708), (4066, 4620), (4180, 4494), (4280, 4389)]