638528080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{3527}}^1$

素因数の和:3644

約数の個数: 80

約数和(自身を含む): 1553900544

約数和(自身を除く): 915372464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 496, 584, 620, 730, 1168, 1240, 1460, 2263, 2480, 2920, 3527, 4526, 5840, 7054, 9052, 11315, 14108, 17635, 18104, 22630, 28216, 35270, 36208, 45260, 56432, 70540, 90520, 109337, 141080, 181040, 218674, 257471, 282160, 437348, 514942, 546685, 874696, 1029884, 1093370, 1287355, 1749392, 2059768, 2186740, 2574710, 4119536, 4373480, 5149420, 7981601, 8746960, 10298840, 15963202, 20597680, 31926404, 39908005, 63852808, 79816010, 127705616, 159632020, 319264040, 638528080]

約数ペア:

[(1, 638528080), (2, 319264040), (4, 159632020), (5, 127705616), (8, 79816010), (10, 63852808), (16, 39908005), (20, 31926404), (31, 20597680), (40, 15963202), (62, 10298840), (73, 8746960), (80, 7981601), (124, 5149420), (146, 4373480), (155, 4119536), (248, 2574710), (292, 2186740), (310, 2059768), (365, 1749392), (496, 1287355), (584, 1093370), (620, 1029884), (730, 874696), (1168, 546685), (1240, 514942), (1460, 437348), (2263, 282160), (2480, 257471), (2920, 218674), (3527, 181040), (4526, 141080), (5840, 109337), (7054, 90520), (9052, 70540), (11315, 56432), (14108, 45260), (17635, 36208), (18104, 35270), (22630, 28216)]