40574080

素因数分解:

$2^7\times 5^1\times {\mathrm{63397}}^1$

素因数の和:63416

約数の個数: 32

約数和(自身を含む): 96998940

約数和(自身を除く): 56424860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 63397, 126794, 253588, 316985, 507176, 633970, 1014352, 1267940, 2028704, 2535880, 4057408, 5071760, 8114816, 10143520, 20287040, 40574080]

約数ペア:

[(1, 40574080), (2, 20287040), (4, 10143520), (5, 8114816), (8, 5071760), (10, 4057408), (16, 2535880), (20, 2028704), (32, 1267940), (40, 1014352), (64, 633970), (80, 507176), (128, 316985), (160, 253588), (320, 126794), (640, 63397)]