20389072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 46139904

約数和(自身を除く): 25750832

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 37, 44, 62, 74, 88, 101, 124, 148, 176, 202, 248, 296, 341, 404, 407, 496, 592, 682, 808, 814, 1111, 1147, 1364, 1616, 1628, 2222, 2294, 2728, 3131, 3256, 3737, 4444, 4588, 5456, 6262, 6512, 7474, 8888, 9176, 12524, 12617, 14948, 17776, 18352, 25048, 25234, 29896, 34441, 41107, 50096, 50468, 59792, 68882, 82214, 100936, 115847, 137764, 164428, 201872, 231694, 275528, 328856, 463388, 551056, 657712, 926776, 1274317, 1853552, 2548634, 5097268, 10194536, 20389072]

約数ペア:

[(1, 20389072), (2, 10194536), (4, 5097268), (8, 2548634), (11, 1853552), (16, 1274317), (22, 926776), (31, 657712), (37, 551056), (44, 463388), (62, 328856), (74, 275528), (88, 231694), (101, 201872), (124, 164428), (148, 137764), (176, 115847), (202, 100936), (248, 82214), (296, 68882), (341, 59792), (404, 50468), (407, 50096), (496, 41107), (592, 34441), (682, 29896), (808, 25234), (814, 25048), (1111, 18352), (1147, 17776), (1364, 14948), (1616, 12617), (1628, 12524), (2222, 9176), (2294, 8888), (2728, 7474), (3131, 6512), (3256, 6262), (3737, 5456), (4444, 4588)]