71305020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4451}}^1$

素因数の和:4555

約数の個数: 72

約数和(自身を含む): 218771280

約数和(自身を除く): 147466260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 89, 90, 178, 180, 267, 356, 445, 534, 801, 890, 1068, 1335, 1602, 1780, 2670, 3204, 4005, 4451, 5340, 8010, 8902, 13353, 16020, 17804, 22255, 26706, 40059, 44510, 53412, 66765, 80118, 89020, 133530, 160236, 200295, 267060, 396139, 400590, 792278, 801180, 1188417, 1584556, 1980695, 2376834, 3565251, 3961390, 4753668, 5942085, 7130502, 7922780, 11884170, 14261004, 17826255, 23768340, 35652510, 71305020]

約数ペア:

[(1, 71305020), (2, 35652510), (3, 23768340), (4, 17826255), (5, 14261004), (6, 11884170), (9, 7922780), (10, 7130502), (12, 5942085), (15, 4753668), (18, 3961390), (20, 3565251), (30, 2376834), (36, 1980695), (45, 1584556), (60, 1188417), (89, 801180), (90, 792278), (178, 400590), (180, 396139), (267, 267060), (356, 200295), (445, 160236), (534, 133530), (801, 89020), (890, 80118), (1068, 66765), (1335, 53412), (1602, 44510), (1780, 40059), (2670, 26706), (3204, 22255), (4005, 17804), (4451, 16020), (5340, 13353), (8010, 8902)]