1268130820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{12781}}^1$

素因数の和:12853

約数の個数: 72

約数和(自身を含む): 2998810584

約数和(自身を除く): 1730679764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 121, 164, 205, 220, 242, 410, 451, 484, 605, 820, 902, 1210, 1804, 2255, 2420, 4510, 4961, 9020, 9922, 12781, 19844, 24805, 25562, 49610, 51124, 63905, 99220, 127810, 140591, 255620, 281182, 524021, 562364, 702955, 1048042, 1405910, 1546501, 2096084, 2620105, 2811820, 3093002, 5240210, 5764231, 6186004, 7732505, 10480420, 11528462, 15465010, 23056924, 28821155, 30930020, 57642310, 63406541, 115284620, 126813082, 253626164, 317032705, 634065410, 1268130820]

約数ペア:

[(1, 1268130820), (2, 634065410), (4, 317032705), (5, 253626164), (10, 126813082), (11, 115284620), (20, 63406541), (22, 57642310), (41, 30930020), (44, 28821155), (55, 23056924), (82, 15465010), (110, 11528462), (121, 10480420), (164, 7732505), (205, 6186004), (220, 5764231), (242, 5240210), (410, 3093002), (451, 2811820), (484, 2620105), (605, 2096084), (820, 1546501), (902, 1405910), (1210, 1048042), (1804, 702955), (2255, 562364), (2420, 524021), (4510, 281182), (4961, 255620), (9020, 140591), (9922, 127810), (12781, 99220), (19844, 63905), (24805, 51124), (25562, 49610)]