127289720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{102653}}^1$

素因数の和:102695

約数の個数: 32

約数和(自身を含む): 295643520

約数和(自身を除く): 168353800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 102653, 205306, 410612, 513265, 821224, 1026530, 2053060, 3182243, 4106120, 6364486, 12728972, 15911215, 25457944, 31822430, 63644860, 127289720]

約数ペア:

[(1, 127289720), (2, 63644860), (4, 31822430), (5, 25457944), (8, 15911215), (10, 12728972), (20, 6364486), (31, 4106120), (40, 3182243), (62, 2053060), (124, 1026530), (155, 821224), (248, 513265), (310, 410612), (620, 205306), (1240, 102653)]