861360140

素因数分解:

$2^2\times 5^1\times {\mathrm{2339}}^1\times {\mathrm{18413}}^1$

素因数の和:20761

約数の個数: 24

約数和(自身を含む): 1809727920

約数和(自身を除く): 948367780

約数列:

[1, 2, 4, 5, 10, 20, 2339, 4678, 9356, 11695, 18413, 23390, 36826, 46780, 73652, 92065, 184130, 368260, 43068007, 86136014, 172272028, 215340035, 430680070, 861360140]

約数ペア:

[(1, 861360140), (2, 430680070), (4, 215340035), (5, 172272028), (10, 86136014), (20, 43068007), (2339, 368260), (4678, 184130), (9356, 92065), (11695, 73652), (18413, 46780), (23390, 36826)]