20129553660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{398921}}^1$

素因数の和:398991

約数の個数: 72

約数和(自身を含む): 58373458416

約数和(自身を除く): 38243904756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 841, 870, 1682, 1740, 2523, 3364, 4205, 5046, 8410, 10092, 12615, 16820, 25230, 50460, 398921, 797842, 1196763, 1595684, 1994605, 2393526, 3989210, 4787052, 5983815, 7978420, 11568709, 11967630, 23137418, 23935260, 34706127, 46274836, 57843545, 69412254, 115687090, 138824508, 173530635, 231374180, 335492561, 347061270, 670985122, 694122540, 1006477683, 1341970244, 1677462805, 2012955366, 3354925610, 4025910732, 5032388415, 6709851220, 10064776830, 20129553660]

約数ペア:

[(1, 20129553660), (2, 10064776830), (3, 6709851220), (4, 5032388415), (5, 4025910732), (6, 3354925610), (10, 2012955366), (12, 1677462805), (15, 1341970244), (20, 1006477683), (29, 694122540), (30, 670985122), (58, 347061270), (60, 335492561), (87, 231374180), (116, 173530635), (145, 138824508), (174, 115687090), (290, 69412254), (348, 57843545), (435, 46274836), (580, 34706127), (841, 23935260), (870, 23137418), (1682, 11967630), (1740, 11568709), (2523, 7978420), (3364, 5983815), (4205, 4787052), (5046, 3989210), (8410, 2393526), (10092, 1994605), (12615, 1595684), (16820, 1196763), (25230, 797842), (50460, 398921)]