12544280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 32762880

約数和(自身を除く): 20218600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 631, 710, 994, 1262, 1420, 1988, 2485, 2524, 2840, 3155, 3976, 4417, 4970, 5048, 6310, 8834, 9940, 12620, 17668, 19880, 22085, 25240, 35336, 44170, 44801, 88340, 89602, 176680, 179204, 224005, 313607, 358408, 448010, 627214, 896020, 1254428, 1568035, 1792040, 2508856, 3136070, 6272140, 12544280]

約数ペア:

[(1, 12544280), (2, 6272140), (4, 3136070), (5, 2508856), (7, 1792040), (8, 1568035), (10, 1254428), (14, 896020), (20, 627214), (28, 448010), (35, 358408), (40, 313607), (56, 224005), (70, 179204), (71, 176680), (140, 89602), (142, 88340), (280, 44801), (284, 44170), (355, 35336), (497, 25240), (568, 22085), (631, 19880), (710, 17668), (994, 12620), (1262, 9940), (1420, 8834), (1988, 6310), (2485, 5048), (2524, 4970), (2840, 4417), (3155, 3976)]