15000000420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{757}}^1\times {\mathrm{2521}}^1$

素因数の和:3421

約数の個数: 96

約数和(自身を含む): 42393326976

約数和(自身を除く): 27393326556

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 757, 786, 1310, 1514, 1572, 1965, 2271, 2521, 2620, 3028, 3785, 3930, 4542, 5042, 7563, 7570, 7860, 9084, 10084, 11355, 12605, 15126, 15140, 22710, 25210, 30252, 37815, 45420, 50420, 75630, 99167, 151260, 198334, 297501, 330251, 396668, 495835, 595002, 660502, 990753, 991670, 1190004, 1321004, 1487505, 1651255, 1908397, 1981506, 1983340, 2975010, 3302510, 3816794, 3963012, 4953765, 5725191, 5950020, 6605020, 7633588, 9541985, 9907530, 11450382, 19083970, 19815060, 22900764, 28625955, 38167940, 57251910, 114503820, 250000007, 500000014, 750000021, 1000000028, 1250000035, 1500000042, 2500000070, 3000000084, 3750000105, 5000000140, 7500000210, 15000000420]

約数ペア:

[(1, 15000000420), (2, 7500000210), (3, 5000000140), (4, 3750000105), (5, 3000000084), (6, 2500000070), (10, 1500000042), (12, 1250000035), (15, 1000000028), (20, 750000021), (30, 500000014), (60, 250000007), (131, 114503820), (262, 57251910), (393, 38167940), (524, 28625955), (655, 22900764), (757, 19815060), (786, 19083970), (1310, 11450382), (1514, 9907530), (1572, 9541985), (1965, 7633588), (2271, 6605020), (2521, 5950020), (2620, 5725191), (3028, 4953765), (3785, 3963012), (3930, 3816794), (4542, 3302510), (5042, 2975010), (7563, 1983340), (7570, 1981506), (7860, 1908397), (9084, 1651255), (10084, 1487505), (11355, 1321004), (12605, 1190004), (15126, 991670), (15140, 990753), (22710, 660502), (25210, 595002), (30252, 495835), (37815, 396668), (45420, 330251), (50420, 297501), (75630, 198334), (99167, 151260)]