20297830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:529

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 25207322

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 37, 70, 74, 85, 119, 170, 185, 238, 259, 370, 461, 518, 595, 629, 922, 1190, 1258, 1295, 2305, 2590, 3145, 3227, 4403, 4610, 6290, 6454, 7837, 8806, 15674, 16135, 17057, 22015, 32270, 34114, 39185, 44030, 54859, 78370, 85285, 109718, 119399, 170570, 238798, 274295, 289969, 548590, 579938, 596995, 1193990, 1449845, 2029783, 2899690, 4059566, 10148915, 20297830]

約数ペア:

[(1, 20297830), (2, 10148915), (5, 4059566), (7, 2899690), (10, 2029783), (14, 1449845), (17, 1193990), (34, 596995), (35, 579938), (37, 548590), (70, 289969), (74, 274295), (85, 238798), (119, 170570), (170, 119399), (185, 109718), (238, 85285), (259, 78370), (370, 54859), (461, 44030), (518, 39185), (595, 34114), (629, 32270), (922, 22015), (1190, 17057), (1258, 16135), (1295, 15674), (2305, 8806), (2590, 7837), (3145, 6454), (3227, 6290), (4403, 4610)]