19685440

素因数分解:

$2^6\times 5^1\times {\mathrm{227}}^1\times {\mathrm{271}}^1$

素因数の和:515

約数の個数: 56

約数和(自身を含む): 47256192

約数和(自身を除く): 27570752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 227, 271, 320, 454, 542, 908, 1084, 1135, 1355, 1816, 2168, 2270, 2710, 3632, 4336, 4540, 5420, 7264, 8672, 9080, 10840, 14528, 17344, 18160, 21680, 36320, 43360, 61517, 72640, 86720, 123034, 246068, 307585, 492136, 615170, 984272, 1230340, 1968544, 2460680, 3937088, 4921360, 9842720, 19685440]

約数ペア:

[(1, 19685440), (2, 9842720), (4, 4921360), (5, 3937088), (8, 2460680), (10, 1968544), (16, 1230340), (20, 984272), (32, 615170), (40, 492136), (64, 307585), (80, 246068), (160, 123034), (227, 86720), (271, 72640), (320, 61517), (454, 43360), (542, 36320), (908, 21680), (1084, 18160), (1135, 17344), (1355, 14528), (1816, 10840), (2168, 9080), (2270, 8672), (2710, 7264), (3632, 5420), (4336, 4540)]