20739968288

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^2\times {\mathrm{7237}}^1$

素因数の和:7426

約数の個数: 72

約数和(自身を含む): 44515046268

約数和(自身を除く): 23775077980

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 664, 1079, 1328, 2158, 2656, 4316, 6889, 7237, 8632, 13778, 14474, 17264, 27556, 28948, 34528, 55112, 57896, 89557, 94081, 110224, 115792, 179114, 188162, 220448, 231584, 358228, 376324, 600671, 716456, 752648, 1201342, 1432912, 1505296, 2402684, 2865824, 3010592, 4805368, 7808723, 9610736, 15617446, 19221472, 31234892, 49855693, 62469784, 99711386, 124939568, 199422772, 249879136, 398845544, 648124009, 797691088, 1296248018, 1595382176, 2592496036, 5184992072, 10369984144, 20739968288]

約数ペア:

[(1, 20739968288), (2, 10369984144), (4, 5184992072), (8, 2592496036), (13, 1595382176), (16, 1296248018), (26, 797691088), (32, 648124009), (52, 398845544), (83, 249879136), (104, 199422772), (166, 124939568), (208, 99711386), (332, 62469784), (416, 49855693), (664, 31234892), (1079, 19221472), (1328, 15617446), (2158, 9610736), (2656, 7808723), (4316, 4805368), (6889, 3010592), (7237, 2865824), (8632, 2402684), (13778, 1505296), (14474, 1432912), (17264, 1201342), (27556, 752648), (28948, 716456), (34528, 600671), (55112, 376324), (57896, 358228), (89557, 231584), (94081, 220448), (110224, 188162), (115792, 179114)]