256304100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{65719}}^1$

素因数の和:65749

約数の個数: 72

約数和(自身を含む): 798629440

約数和(自身を除く): 542325340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 65719, 131438, 197157, 262876, 328595, 394314, 657190, 788628, 854347, 985785, 1314380, 1642975, 1708694, 1971570, 2563041, 3285950, 3417388, 3943140, 4271735, 4928925, 5126082, 6571900, 8543470, 9857850, 10252164, 12815205, 17086940, 19715700, 21358675, 25630410, 42717350, 51260820, 64076025, 85434700, 128152050, 256304100]

約数ペア:

[(1, 256304100), (2, 128152050), (3, 85434700), (4, 64076025), (5, 51260820), (6, 42717350), (10, 25630410), (12, 21358675), (13, 19715700), (15, 17086940), (20, 12815205), (25, 10252164), (26, 9857850), (30, 8543470), (39, 6571900), (50, 5126082), (52, 4928925), (60, 4271735), (65, 3943140), (75, 3417388), (78, 3285950), (100, 2563041), (130, 1971570), (150, 1708694), (156, 1642975), (195, 1314380), (260, 985785), (300, 854347), (325, 788628), (390, 657190), (650, 394314), (780, 328595), (975, 262876), (1300, 197157), (1950, 131438), (3900, 65719)]