51247300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 121520000

約数和(自身を除く): 70272700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 130, 158, 260, 316, 325, 395, 499, 650, 790, 998, 1027, 1300, 1580, 1975, 1996, 2054, 2495, 3950, 4108, 4990, 5135, 6487, 7900, 9980, 10270, 12475, 12974, 20540, 24950, 25675, 25948, 32435, 39421, 49900, 51350, 64870, 78842, 102700, 129740, 157684, 162175, 197105, 324350, 394210, 512473, 648700, 788420, 985525, 1024946, 1971050, 2049892, 2562365, 3942100, 5124730, 10249460, 12811825, 25623650, 51247300]

約数ペア:

[(1, 51247300), (2, 25623650), (4, 12811825), (5, 10249460), (10, 5124730), (13, 3942100), (20, 2562365), (25, 2049892), (26, 1971050), (50, 1024946), (52, 985525), (65, 788420), (79, 648700), (100, 512473), (130, 394210), (158, 324350), (260, 197105), (316, 162175), (325, 157684), (395, 129740), (499, 102700), (650, 78842), (790, 64870), (998, 51350), (1027, 49900), (1300, 39421), (1580, 32435), (1975, 25948), (1996, 25675), (2054, 24950), (2495, 20540), (3950, 12974), (4108, 12475), (4990, 10270), (5135, 9980), (6487, 7900)]