638350016

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:278

約数の個数: 84

約数和(自身を含む): 1334758824

約数和(自身を除く): 696408808

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 97, 107, 124, 194, 214, 248, 388, 428, 496, 776, 856, 961, 992, 1552, 1712, 1922, 1984, 3007, 3104, 3317, 3424, 3844, 6014, 6208, 6634, 6848, 7688, 10379, 12028, 13268, 15376, 20758, 24056, 26536, 30752, 41516, 48112, 53072, 61504, 83032, 93217, 96224, 102827, 106144, 166064, 186434, 192448, 205654, 212288, 321749, 332128, 372868, 411308, 643498, 664256, 745736, 822616, 1286996, 1491472, 1645232, 2573992, 2982944, 3290464, 5147984, 5965888, 6580928, 9974219, 10295968, 19948438, 20591936, 39896876, 79793752, 159587504, 319175008, 638350016]

約数ペア:

[(1, 638350016), (2, 319175008), (4, 159587504), (8, 79793752), (16, 39896876), (31, 20591936), (32, 19948438), (62, 10295968), (64, 9974219), (97, 6580928), (107, 5965888), (124, 5147984), (194, 3290464), (214, 2982944), (248, 2573992), (388, 1645232), (428, 1491472), (496, 1286996), (776, 822616), (856, 745736), (961, 664256), (992, 643498), (1552, 411308), (1712, 372868), (1922, 332128), (1984, 321749), (3007, 212288), (3104, 205654), (3317, 192448), (3424, 186434), (3844, 166064), (6014, 106144), (6208, 102827), (6634, 96224), (6848, 93217), (7688, 83032), (10379, 61504), (12028, 53072), (13268, 48112), (15376, 41516), (20758, 30752), (24056, 26536)]