89156620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20543}}^1$

素因数の和:20590

約数の個数: 48

約数和(自身を含む): 220889088

約数和(自身を除く): 131732468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20543, 41086, 82172, 102715, 143801, 205430, 287602, 410860, 575204, 636833, 719005, 1273666, 1438010, 2547332, 2876020, 3184165, 4457831, 6368330, 8915662, 12736660, 17831324, 22289155, 44578310, 89156620]

約数ペア:

[(1, 89156620), (2, 44578310), (4, 22289155), (5, 17831324), (7, 12736660), (10, 8915662), (14, 6368330), (20, 4457831), (28, 3184165), (31, 2876020), (35, 2547332), (62, 1438010), (70, 1273666), (124, 719005), (140, 636833), (155, 575204), (217, 410860), (310, 287602), (434, 205430), (620, 143801), (868, 102715), (1085, 82172), (2170, 41086), (4340, 20543)]