105781640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1322

約数の個数: 64

約数和(自身を含む): 248618160

約数和(自身を除く): 142836520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 53, 82, 106, 164, 205, 212, 265, 328, 410, 424, 530, 820, 1060, 1217, 1640, 2120, 2173, 2434, 4346, 4868, 6085, 8692, 9736, 10865, 12170, 17384, 21730, 24340, 43460, 48680, 49897, 64501, 86920, 99794, 129002, 199588, 249485, 258004, 322505, 399176, 498970, 516008, 645010, 997940, 1290020, 1995880, 2580040, 2644541, 5289082, 10578164, 13222705, 21156328, 26445410, 52890820, 105781640]

約数ペア:

[(1, 105781640), (2, 52890820), (4, 26445410), (5, 21156328), (8, 13222705), (10, 10578164), (20, 5289082), (40, 2644541), (41, 2580040), (53, 1995880), (82, 1290020), (106, 997940), (164, 645010), (205, 516008), (212, 498970), (265, 399176), (328, 322505), (410, 258004), (424, 249485), (530, 199588), (820, 129002), (1060, 99794), (1217, 86920), (1640, 64501), (2120, 49897), (2173, 48680), (2434, 43460), (4346, 24340), (4868, 21730), (6085, 17384), (8692, 12170), (9736, 10865)]