64228400

素因数分解:

$2^4\times 5^2\times {\mathrm{211}}^1\times {\mathrm{761}}^1$

素因数の和:990

約数の個数: 60

約数和(自身を含む): 155243784

約数和(自身を除く): 91015384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 211, 400, 422, 761, 844, 1055, 1522, 1688, 2110, 3044, 3376, 3805, 4220, 5275, 6088, 7610, 8440, 10550, 12176, 15220, 16880, 19025, 21100, 30440, 38050, 42200, 60880, 76100, 84400, 152200, 160571, 304400, 321142, 642284, 802855, 1284568, 1605710, 2569136, 3211420, 4014275, 6422840, 8028550, 12845680, 16057100, 32114200, 64228400]

約数ペア:

[(1, 64228400), (2, 32114200), (4, 16057100), (5, 12845680), (8, 8028550), (10, 6422840), (16, 4014275), (20, 3211420), (25, 2569136), (40, 1605710), (50, 1284568), (80, 802855), (100, 642284), (200, 321142), (211, 304400), (400, 160571), (422, 152200), (761, 84400), (844, 76100), (1055, 60880), (1522, 42200), (1688, 38050), (2110, 30440), (3044, 21100), (3376, 19025), (3805, 16880), (4220, 15220), (5275, 12176), (6088, 10550), (7610, 8440)]