20215082020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4657853}}^1$

素因数の和:4657900

約数の個数: 48

約数和(自身を含む): 50081246208

約数和(自身を除く): 29866164188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4657853, 9315706, 18631412, 23289265, 32604971, 46578530, 65209942, 93157060, 130419884, 144393443, 163024855, 288786886, 326049710, 577573772, 652099420, 721967215, 1010754101, 1443934430, 2021508202, 2887868860, 4043016404, 5053770505, 10107541010, 20215082020]

約数ペア:

[(1, 20215082020), (2, 10107541010), (4, 5053770505), (5, 4043016404), (7, 2887868860), (10, 2021508202), (14, 1443934430), (20, 1010754101), (28, 721967215), (31, 652099420), (35, 577573772), (62, 326049710), (70, 288786886), (124, 163024855), (140, 144393443), (155, 130419884), (217, 93157060), (310, 65209942), (434, 46578530), (620, 32604971), (868, 23289265), (1085, 18631412), (2170, 9315706), (4340, 4657853)]