987464080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{398171}}^1$

素因数の和:398215

約数の個数: 40

約数和(自身を含む): 2369919744

約数和(自身を除く): 1382455664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 398171, 796342, 1592684, 1990855, 3185368, 3981710, 6370736, 7963420, 12343301, 15926840, 24686602, 31853680, 49373204, 61716505, 98746408, 123433010, 197492816, 246866020, 493732040, 987464080]

約数ペア:

[(1, 987464080), (2, 493732040), (4, 246866020), (5, 197492816), (8, 123433010), (10, 98746408), (16, 61716505), (20, 49373204), (31, 31853680), (40, 24686602), (62, 15926840), (80, 12343301), (124, 7963420), (155, 6370736), (248, 3981710), (310, 3185368), (496, 1990855), (620, 1592684), (1240, 796342), (2480, 398171)]