20120971724

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1487}}^1$

素因数の和:1684

約数の個数: 144

約数和(自身を含む): 45141110784

約数和(自身を除く): 25020139060

約数列:

[1, 2, 4, 7, 14, 17, 28, 31, 34, 49, 62, 68, 98, 119, 124, 131, 196, 217, 238, 262, 434, 476, 524, 527, 833, 868, 917, 1054, 1487, 1519, 1666, 1834, 2108, 2227, 2974, 3038, 3332, 3668, 3689, 4061, 4454, 5948, 6076, 6419, 7378, 8122, 8908, 10409, 12838, 14756, 15589, 16244, 20818, 25279, 25676, 25823, 28427, 31178, 41636, 46097, 50558, 51646, 56854, 62356, 69037, 72863, 92194, 101116, 103292, 109123, 113708, 138074, 145726, 176953, 184388, 194797, 198989, 218246, 276148, 291452, 322679, 353906, 389594, 397978, 436492, 483259, 645358, 707812, 779188, 783649, 795956, 966518, 1238671, 1290716, 1363579, 1567298, 1933036, 2258753, 2477342, 2727158, 3134596, 3311549, 3382813, 4517506, 4954684, 5454316, 5485543, 6038707, 6623098, 6765626, 9035012, 9545053, 10971086, 12077414, 13246196, 13531252, 19090106, 21942172, 23180843, 24154828, 38180212, 38398801, 42270949, 46361686, 76797602, 84541898, 92723372, 102658019, 153595204, 162265901, 169083796, 205316038, 295896643, 324531802, 410632076, 591793286, 649063604, 718606133, 1183586572, 1437212266, 2874424532, 5030242931, 10060485862, 20120971724]

約数ペア:

[(1, 20120971724), (2, 10060485862), (4, 5030242931), (7, 2874424532), (14, 1437212266), (17, 1183586572), (28, 718606133), (31, 649063604), (34, 591793286), (49, 410632076), (62, 324531802), (68, 295896643), (98, 205316038), (119, 169083796), (124, 162265901), (131, 153595204), (196, 102658019), (217, 92723372), (238, 84541898), (262, 76797602), (434, 46361686), (476, 42270949), (524, 38398801), (527, 38180212), (833, 24154828), (868, 23180843), (917, 21942172), (1054, 19090106), (1487, 13531252), (1519, 13246196), (1666, 12077414), (1834, 10971086), (2108, 9545053), (2227, 9035012), (2974, 6765626), (3038, 6623098), (3332, 6038707), (3668, 5485543), (3689, 5454316), (4061, 4954684), (4454, 4517506), (5948, 3382813), (6076, 3311549), (6419, 3134596), (7378, 2727158), (8122, 2477342), (8908, 2258753), (10409, 1933036), (12838, 1567298), (14756, 1363579), (15589, 1290716), (16244, 1238671), (20818, 966518), (25279, 795956), (25676, 783649), (25823, 779188), (28427, 707812), (31178, 645358), (41636, 483259), (46097, 436492), (50558, 397978), (51646, 389594), (56854, 353906), (62356, 322679), (69037, 291452), (72863, 276148), (92194, 218246), (101116, 198989), (103292, 194797), (109123, 184388), (113708, 176953), (138074, 145726)]