20171750980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{440239}}^1$

素因数の和:440356

約数の個数: 48

約数和(自身を含む): 44376192000

約数和(自身を除く): 24204441020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 2291, 4582, 9164, 11455, 22910, 45820, 440239, 880478, 1760956, 2201195, 4402390, 8804780, 12766931, 25533862, 34778881, 51067724, 63834655, 69557762, 127669310, 139115524, 173894405, 255338620, 347788810, 695577620, 1008587549, 2017175098, 4034350196, 5042937745, 10085875490, 20171750980]

約数ペア:

[(1, 20171750980), (2, 10085875490), (4, 5042937745), (5, 4034350196), (10, 2017175098), (20, 1008587549), (29, 695577620), (58, 347788810), (79, 255338620), (116, 173894405), (145, 139115524), (158, 127669310), (290, 69557762), (316, 63834655), (395, 51067724), (580, 34778881), (790, 25533862), (1580, 12766931), (2291, 8804780), (4582, 4402390), (9164, 2201195), (11455, 1760956), (22910, 880478), (45820, 440239)]