1281800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 96

約数和(自身を含む): 3515400

約数和(自身を除く): 2233600

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 25, 26, 29, 34, 40, 50, 52, 58, 65, 68, 85, 100, 104, 116, 130, 136, 145, 170, 200, 221, 232, 260, 290, 325, 340, 377, 425, 442, 493, 520, 580, 650, 680, 725, 754, 850, 884, 986, 1105, 1160, 1300, 1450, 1508, 1700, 1768, 1885, 1972, 2210, 2465, 2600, 2900, 3016, 3400, 3770, 3944, 4420, 4930, 5525, 5800, 6409, 7540, 8840, 9425, 9860, 11050, 12325, 12818, 15080, 18850, 19720, 22100, 24650, 25636, 32045, 37700, 44200, 49300, 51272, 64090, 75400, 98600, 128180, 160225, 256360, 320450, 640900, 1281800]

約数ペア:

[(1, 1281800), (2, 640900), (4, 320450), (5, 256360), (8, 160225), (10, 128180), (13, 98600), (17, 75400), (20, 64090), (25, 51272), (26, 49300), (29, 44200), (34, 37700), (40, 32045), (50, 25636), (52, 24650), (58, 22100), (65, 19720), (68, 18850), (85, 15080), (100, 12818), (104, 12325), (116, 11050), (130, 9860), (136, 9425), (145, 8840), (170, 7540), (200, 6409), (221, 5800), (232, 5525), (260, 4930), (290, 4420), (325, 3944), (340, 3770), (377, 3400), (425, 3016), (442, 2900), (493, 2600), (520, 2465), (580, 2210), (650, 1972), (680, 1885), (725, 1768), (754, 1700), (850, 1508), (884, 1450), (986, 1300), (1105, 1160)]