665627840

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29297}}^1$

素因数の和:29385

約数の個数: 56

約数和(自身を含む): 1607405472

約数和(自身を除く): 941777632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 4544, 5680, 11360, 22720, 29297, 58594, 117188, 146485, 234376, 292970, 468752, 585940, 937504, 1171880, 1875008, 2080087, 2343760, 4160174, 4687520, 8320348, 9375040, 10400435, 16640696, 20800870, 33281392, 41601740, 66562784, 83203480, 133125568, 166406960, 332813920, 665627840]

約数ペア:

[(1, 665627840), (2, 332813920), (4, 166406960), (5, 133125568), (8, 83203480), (10, 66562784), (16, 41601740), (20, 33281392), (32, 20800870), (40, 16640696), (64, 10400435), (71, 9375040), (80, 8320348), (142, 4687520), (160, 4160174), (284, 2343760), (320, 2080087), (355, 1875008), (568, 1171880), (710, 937504), (1136, 585940), (1420, 468752), (2272, 292970), (2840, 234376), (4544, 146485), (5680, 117188), (11360, 58594), (22720, 29297)]