39891280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:365

約数の個数: 120

約数和(自身を含む): 110133576

約数和(自身を除く): 70242296

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 40, 44, 52, 55, 65, 80, 88, 104, 110, 121, 130, 143, 176, 208, 220, 242, 260, 286, 317, 440, 484, 520, 572, 605, 634, 715, 880, 968, 1040, 1144, 1210, 1268, 1430, 1573, 1585, 1936, 2288, 2420, 2536, 2860, 3146, 3170, 3487, 4121, 4840, 5072, 5720, 6292, 6340, 6974, 7865, 8242, 9680, 11440, 12584, 12680, 13948, 15730, 16484, 17435, 20605, 25168, 25360, 27896, 31460, 32968, 34870, 38357, 41210, 45331, 55792, 62920, 65936, 69740, 76714, 82420, 90662, 125840, 139480, 153428, 164840, 181324, 191785, 226655, 278960, 306856, 329680, 362648, 383570, 453310, 498641, 613712, 725296, 767140, 906620, 997282, 1534280, 1813240, 1994564, 2493205, 3068560, 3626480, 3989128, 4986410, 7978256, 9972820, 19945640, 39891280]

約数ペア:

[(1, 39891280), (2, 19945640), (4, 9972820), (5, 7978256), (8, 4986410), (10, 3989128), (11, 3626480), (13, 3068560), (16, 2493205), (20, 1994564), (22, 1813240), (26, 1534280), (40, 997282), (44, 906620), (52, 767140), (55, 725296), (65, 613712), (80, 498641), (88, 453310), (104, 383570), (110, 362648), (121, 329680), (130, 306856), (143, 278960), (176, 226655), (208, 191785), (220, 181324), (242, 164840), (260, 153428), (286, 139480), (317, 125840), (440, 90662), (484, 82420), (520, 76714), (572, 69740), (605, 65936), (634, 62920), (715, 55792), (880, 45331), (968, 41210), (1040, 38357), (1144, 34870), (1210, 32968), (1268, 31460), (1430, 27896), (1573, 25360), (1585, 25168), (1936, 20605), (2288, 17435), (2420, 16484), (2536, 15730), (2860, 13948), (3146, 12680), (3170, 12584), (3487, 11440), (4121, 9680), (4840, 8242), (5072, 7865), (5720, 6974), (6292, 6340)]