25673960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 62974800

約数和(自身を除く): 37300840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 388, 485, 509, 520, 776, 970, 1018, 1261, 1940, 2036, 2522, 2545, 3880, 4072, 5044, 5090, 6305, 6617, 10088, 10180, 12610, 13234, 20360, 25220, 26468, 33085, 49373, 50440, 52936, 66170, 98746, 132340, 197492, 246865, 264680, 394984, 493730, 641849, 987460, 1283698, 1974920, 2567396, 3209245, 5134792, 6418490, 12836980, 25673960]

約数ペア:

[(1, 25673960), (2, 12836980), (4, 6418490), (5, 5134792), (8, 3209245), (10, 2567396), (13, 1974920), (20, 1283698), (26, 987460), (40, 641849), (52, 493730), (65, 394984), (97, 264680), (104, 246865), (130, 197492), (194, 132340), (260, 98746), (388, 66170), (485, 52936), (509, 50440), (520, 49373), (776, 33085), (970, 26468), (1018, 25220), (1261, 20360), (1940, 13234), (2036, 12610), (2522, 10180), (2545, 10088), (3880, 6617), (4072, 6305), (5044, 5090)]