18207280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 160

約数和(自身を含む): 54246528

約数和(自身を除く): 36039248

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 41, 52, 56, 61, 65, 70, 80, 82, 91, 104, 112, 122, 130, 140, 164, 182, 205, 208, 244, 260, 280, 287, 305, 328, 364, 410, 427, 455, 488, 520, 533, 560, 574, 610, 656, 728, 793, 820, 854, 910, 976, 1040, 1066, 1148, 1220, 1435, 1456, 1586, 1640, 1708, 1820, 2132, 2135, 2296, 2440, 2501, 2665, 2870, 3172, 3280, 3416, 3640, 3731, 3965, 4264, 4270, 4592, 4880, 5002, 5330, 5551, 5740, 6344, 6832, 7280, 7462, 7930, 8528, 8540, 10004, 10660, 11102, 11480, 12505, 12688, 14924, 15860, 17080, 17507, 18655, 20008, 21320, 22204, 22960, 25010, 27755, 29848, 31720, 32513, 34160, 35014, 37310, 40016, 42640, 44408, 50020, 55510, 59696, 63440, 65026, 70028, 74620, 87535, 88816, 100040, 111020, 130052, 140056, 149240, 162565, 175070, 200080, 222040, 227591, 260104, 280112, 298480, 325130, 350140, 444080, 455182, 520208, 650260, 700280, 910364, 1137955, 1300520, 1400560, 1820728, 2275910, 2601040, 3641456, 4551820, 9103640, 18207280]

約数ペア:

[(1, 18207280), (2, 9103640), (4, 4551820), (5, 3641456), (7, 2601040), (8, 2275910), (10, 1820728), (13, 1400560), (14, 1300520), (16, 1137955), (20, 910364), (26, 700280), (28, 650260), (35, 520208), (40, 455182), (41, 444080), (52, 350140), (56, 325130), (61, 298480), (65, 280112), (70, 260104), (80, 227591), (82, 222040), (91, 200080), (104, 175070), (112, 162565), (122, 149240), (130, 140056), (140, 130052), (164, 111020), (182, 100040), (205, 88816), (208, 87535), (244, 74620), (260, 70028), (280, 65026), (287, 63440), (305, 59696), (328, 55510), (364, 50020), (410, 44408), (427, 42640), (455, 40016), (488, 37310), (520, 35014), (533, 34160), (560, 32513), (574, 31720), (610, 29848), (656, 27755), (728, 25010), (793, 22960), (820, 22204), (854, 21320), (910, 20008), (976, 18655), (1040, 17507), (1066, 17080), (1148, 15860), (1220, 14924), (1435, 12688), (1456, 12505), (1586, 11480), (1640, 11102), (1708, 10660), (1820, 10004), (2132, 8540), (2135, 8528), (2296, 7930), (2440, 7462), (2501, 7280), (2665, 6832), (2870, 6344), (3172, 5740), (3280, 5551), (3416, 5330), (3640, 5002), (3731, 4880), (3965, 4592), (4264, 4270)]