19996283320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{12637}}^1$

素因数の和:12857

約数の個数: 128

約数和(自身を含む): 51593371200

約数和(自身を除く): 31597087880

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 179, 221, 260, 340, 358, 442, 520, 680, 716, 884, 895, 1105, 1432, 1768, 1790, 2210, 2327, 3043, 3580, 4420, 4654, 6086, 7160, 8840, 9308, 11635, 12172, 12637, 15215, 18616, 23270, 24344, 25274, 30430, 39559, 46540, 50548, 60860, 63185, 79118, 93080, 101096, 121720, 126370, 158236, 164281, 197795, 214829, 252740, 316472, 328562, 395590, 429658, 505480, 657124, 791180, 821405, 859316, 1074145, 1314248, 1582360, 1642810, 1718632, 2148290, 2262023, 2792777, 3285620, 4296580, 4524046, 5585554, 6571240, 8593160, 9048092, 11171108, 11310115, 13963885, 18096184, 22342216, 22620230, 27927770, 29406299, 38454391, 45240460, 55855540, 58812598, 76908782, 90480920, 111711080, 117625196, 147031495, 153817564, 192271955, 235250392, 294062990, 307635128, 384543910, 499907083, 588125980, 769087820, 999814166, 1176251960, 1538175640, 1999628332, 2499535415, 3999256664, 4999070830, 9998141660, 19996283320]

約数ペア:

[(1, 19996283320), (2, 9998141660), (4, 4999070830), (5, 3999256664), (8, 2499535415), (10, 1999628332), (13, 1538175640), (17, 1176251960), (20, 999814166), (26, 769087820), (34, 588125980), (40, 499907083), (52, 384543910), (65, 307635128), (68, 294062990), (85, 235250392), (104, 192271955), (130, 153817564), (136, 147031495), (170, 117625196), (179, 111711080), (221, 90480920), (260, 76908782), (340, 58812598), (358, 55855540), (442, 45240460), (520, 38454391), (680, 29406299), (716, 27927770), (884, 22620230), (895, 22342216), (1105, 18096184), (1432, 13963885), (1768, 11310115), (1790, 11171108), (2210, 9048092), (2327, 8593160), (3043, 6571240), (3580, 5585554), (4420, 4524046), (4654, 4296580), (6086, 3285620), (7160, 2792777), (8840, 2262023), (9308, 2148290), (11635, 1718632), (12172, 1642810), (12637, 1582360), (15215, 1314248), (18616, 1074145), (23270, 859316), (24344, 821405), (25274, 791180), (30430, 657124), (39559, 505480), (46540, 429658), (50548, 395590), (60860, 328562), (63185, 316472), (79118, 252740), (93080, 214829), (101096, 197795), (121720, 164281), (126370, 158236)]