31815920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12829}}^1$

素因数の和:12873

約数の個数: 40

約数和(自身を含む): 76364160

約数和(自身を除く): 44548240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12829, 25658, 51316, 64145, 102632, 128290, 205264, 256580, 397699, 513160, 795398, 1026320, 1590796, 1988495, 3181592, 3976990, 6363184, 7953980, 15907960, 31815920]

約数ペア:

[(1, 31815920), (2, 15907960), (4, 7953980), (5, 6363184), (8, 3976990), (10, 3181592), (16, 1988495), (20, 1590796), (31, 1026320), (40, 795398), (62, 513160), (80, 397699), (124, 256580), (155, 205264), (248, 128290), (310, 102632), (496, 64145), (620, 51316), (1240, 25658), (2480, 12829)]