20005901090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{21487}}^1$

素因数の和:21831

約数の個数: 64

約数和(自身を含む): 42181115904

約数和(自身を除く): 22175214814

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 283, 329, 470, 566, 658, 1415, 1645, 1981, 2830, 3290, 3962, 9905, 13301, 19810, 21487, 26602, 42974, 66505, 93107, 107435, 133010, 150409, 186214, 214870, 300818, 465535, 752045, 931070, 1009889, 1504090, 2019778, 5049445, 6080821, 7069223, 10098890, 12161642, 14138446, 30404105, 35346115, 42565747, 60808210, 70692230, 85131494, 212828735, 285798587, 425657470, 571597174, 1428992935, 2000590109, 2857985870, 4001180218, 10002950545, 20005901090]

約数ペア:

[(1, 20005901090), (2, 10002950545), (5, 4001180218), (7, 2857985870), (10, 2000590109), (14, 1428992935), (35, 571597174), (47, 425657470), (70, 285798587), (94, 212828735), (235, 85131494), (283, 70692230), (329, 60808210), (470, 42565747), (566, 35346115), (658, 30404105), (1415, 14138446), (1645, 12161642), (1981, 10098890), (2830, 7069223), (3290, 6080821), (3962, 5049445), (9905, 2019778), (13301, 1504090), (19810, 1009889), (21487, 931070), (26602, 752045), (42974, 465535), (66505, 300818), (93107, 214870), (107435, 186214), (133010, 150409)]