1820174620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{347}}^1$

素因数の和:691

約数の個数: 96

約数和(自身を含む): 4238873856

約数和(自身を除く): 2418699236

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 211, 220, 226, 347, 422, 452, 565, 694, 844, 1055, 1130, 1243, 1388, 1735, 2110, 2260, 2321, 2486, 3470, 3817, 4220, 4642, 4972, 6215, 6940, 7634, 9284, 11605, 12430, 15268, 19085, 23210, 23843, 24860, 38170, 39211, 46420, 47686, 73217, 76340, 78422, 95372, 119215, 146434, 156844, 196055, 238430, 262273, 292868, 366085, 392110, 431321, 476860, 524546, 732170, 784220, 805387, 862642, 1049092, 1311365, 1464340, 1610774, 1725284, 2156605, 2622730, 3221548, 4026935, 4313210, 5245460, 8053870, 8273521, 8626420, 16107740, 16547042, 33094084, 41367605, 82735210, 91008731, 165470420, 182017462, 364034924, 455043655, 910087310, 1820174620]

約数ペア:

[(1, 1820174620), (2, 910087310), (4, 455043655), (5, 364034924), (10, 182017462), (11, 165470420), (20, 91008731), (22, 82735210), (44, 41367605), (55, 33094084), (110, 16547042), (113, 16107740), (211, 8626420), (220, 8273521), (226, 8053870), (347, 5245460), (422, 4313210), (452, 4026935), (565, 3221548), (694, 2622730), (844, 2156605), (1055, 1725284), (1130, 1610774), (1243, 1464340), (1388, 1311365), (1735, 1049092), (2110, 862642), (2260, 805387), (2321, 784220), (2486, 732170), (3470, 524546), (3817, 476860), (4220, 431321), (4642, 392110), (4972, 366085), (6215, 292868), (6940, 262273), (7634, 238430), (9284, 196055), (11605, 156844), (12430, 146434), (15268, 119215), (19085, 95372), (23210, 78422), (23843, 76340), (24860, 73217), (38170, 47686), (39211, 46420)]