404094920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{325883}}^1$

素因数の和:325925

約数の個数: 32

約数和(自身を含む): 938545920

約数和(自身を除く): 534451000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 325883, 651766, 1303532, 1629415, 2607064, 3258830, 6517660, 10102373, 13035320, 20204746, 40409492, 50511865, 80818984, 101023730, 202047460, 404094920]

約数ペア:

[(1, 404094920), (2, 202047460), (4, 101023730), (5, 80818984), (8, 50511865), (10, 40409492), (20, 20204746), (31, 13035320), (40, 10102373), (62, 6517660), (124, 3258830), (155, 2607064), (248, 1629415), (310, 1303532), (620, 651766), (1240, 325883)]