21572212420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{40039}}^1$

素因数の和:40169

約数の個数: 96

約数和(自身を含む): 51661209600

約数和(自身を除く): 30088997180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 79, 110, 124, 155, 158, 220, 310, 316, 341, 395, 620, 682, 790, 869, 1364, 1580, 1705, 1738, 2449, 3410, 3476, 4345, 4898, 6820, 8690, 9796, 12245, 17380, 24490, 26939, 40039, 48980, 53878, 80078, 107756, 134695, 160156, 200195, 269390, 400390, 440429, 538780, 800780, 880858, 1241209, 1761716, 2202145, 2482418, 3163081, 4404290, 4964836, 6206045, 6326162, 8808580, 12412090, 12652324, 13653299, 15815405, 24824180, 27306598, 31630810, 34793891, 54613196, 63261620, 68266495, 69587782, 98055511, 136532990, 139175564, 173969455, 196111022, 273065980, 347938910, 392222044, 490277555, 695877820, 980555110, 1078610621, 1961110220, 2157221242, 4314442484, 5393053105, 10786106210, 21572212420]

約数ペア:

[(1, 21572212420), (2, 10786106210), (4, 5393053105), (5, 4314442484), (10, 2157221242), (11, 1961110220), (20, 1078610621), (22, 980555110), (31, 695877820), (44, 490277555), (55, 392222044), (62, 347938910), (79, 273065980), (110, 196111022), (124, 173969455), (155, 139175564), (158, 136532990), (220, 98055511), (310, 69587782), (316, 68266495), (341, 63261620), (395, 54613196), (620, 34793891), (682, 31630810), (790, 27306598), (869, 24824180), (1364, 15815405), (1580, 13653299), (1705, 12652324), (1738, 12412090), (2449, 8808580), (3410, 6326162), (3476, 6206045), (4345, 4964836), (4898, 4404290), (6820, 3163081), (8690, 2482418), (9796, 2202145), (12245, 1761716), (17380, 1241209), (24490, 880858), (26939, 800780), (40039, 538780), (48980, 440429), (53878, 400390), (80078, 269390), (107756, 200195), (134695, 160156)]