90898460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{64013}}^1$

素因数の和:64093

約数の個数: 24

約数和(自身を含む): 193578336

約数和(自身を除く): 102679876

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 64013, 128026, 256052, 320065, 640130, 1280260, 4544923, 9089846, 18179692, 22724615, 45449230, 90898460]

約数ペア:

[(1, 90898460), (2, 45449230), (4, 22724615), (5, 18179692), (10, 9089846), (20, 4544923), (71, 1280260), (142, 640130), (284, 320065), (355, 256052), (710, 128026), (1420, 64013)]