388779740

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1\times {\mathrm{461}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 826610400

約数和(自身を除く): 437830660

約数列:

[1, 2, 4, 5, 10, 20, 149, 283, 298, 461, 566, 596, 745, 922, 1132, 1415, 1490, 1844, 2305, 2830, 2980, 4610, 5660, 9220, 42167, 68689, 84334, 130463, 137378, 168668, 210835, 260926, 274756, 343445, 421670, 521852, 652315, 686890, 843340, 1304630, 1373780, 2609260, 19438987, 38877974, 77755948, 97194935, 194389870, 388779740]

約数ペア:

[(1, 388779740), (2, 194389870), (4, 97194935), (5, 77755948), (10, 38877974), (20, 19438987), (149, 2609260), (283, 1373780), (298, 1304630), (461, 843340), (566, 686890), (596, 652315), (745, 521852), (922, 421670), (1132, 343445), (1415, 274756), (1490, 260926), (1844, 210835), (2305, 168668), (2830, 137378), (2980, 130463), (4610, 84334), (5660, 68689), (9220, 42167)]