20149653890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{1109}}^1$

素因数の和:1515

約数の個数: 64

約数和(自身を含む): 37274688000

約数和(自身を除く): 17125034110

約数列:

[1, 2, 5, 10, 79, 109, 158, 211, 218, 395, 422, 545, 790, 1055, 1090, 1109, 2110, 2218, 5545, 8611, 11090, 16669, 17222, 22999, 33338, 43055, 45998, 83345, 86110, 87611, 114995, 120881, 166690, 175222, 229990, 233999, 241762, 438055, 467998, 604405, 876110, 1169995, 1208810, 1816921, 2339990, 3633842, 9084605, 9549599, 18169210, 18485921, 19099198, 25505891, 36971842, 47747995, 51011782, 92429605, 95495990, 127529455, 184859210, 255058910, 2014965389, 4029930778, 10074826945, 20149653890]

約数ペア:

[(1, 20149653890), (2, 10074826945), (5, 4029930778), (10, 2014965389), (79, 255058910), (109, 184859210), (158, 127529455), (211, 95495990), (218, 92429605), (395, 51011782), (422, 47747995), (545, 36971842), (790, 25505891), (1055, 19099198), (1090, 18485921), (1109, 18169210), (2110, 9549599), (2218, 9084605), (5545, 3633842), (8611, 2339990), (11090, 1816921), (16669, 1208810), (17222, 1169995), (22999, 876110), (33338, 604405), (43055, 467998), (45998, 438055), (83345, 241762), (86110, 233999), (87611, 229990), (114995, 175222), (120881, 166690)]