64431250

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^2\times {\mathrm{61}}^1$

素因数の和:114

約数の個数: 72

約数和(自身を含む): 132952428

約数和(自身を除く): 68521178

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 125, 130, 169, 250, 305, 325, 338, 610, 625, 650, 793, 845, 1250, 1525, 1586, 1625, 1690, 3050, 3125, 3250, 3965, 4225, 6250, 7625, 7930, 8125, 8450, 10309, 15250, 16250, 19825, 20618, 21125, 38125, 39650, 40625, 42250, 51545, 76250, 81250, 99125, 103090, 105625, 190625, 198250, 211250, 257725, 381250, 495625, 515450, 528125, 991250, 1056250, 1288625, 2478125, 2577250, 4956250, 6443125, 12886250, 32215625, 64431250]

約数ペア:

[(1, 64431250), (2, 32215625), (5, 12886250), (10, 6443125), (13, 4956250), (25, 2577250), (26, 2478125), (50, 1288625), (61, 1056250), (65, 991250), (122, 528125), (125, 515450), (130, 495625), (169, 381250), (250, 257725), (305, 211250), (325, 198250), (338, 190625), (610, 105625), (625, 103090), (650, 99125), (793, 81250), (845, 76250), (1250, 51545), (1525, 42250), (1586, 40625), (1625, 39650), (1690, 38125), (3050, 21125), (3125, 20618), (3250, 19825), (3965, 16250), (4225, 15250), (6250, 10309), (7625, 8450), (7930, 8125)]