19471920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^2$

素因数の和:187

約数の個数: 120

約数和(自身を含む): 65839536

約数和(自身を除く): 46367616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 79, 80, 104, 120, 130, 156, 158, 195, 208, 237, 240, 260, 312, 316, 390, 395, 474, 520, 624, 632, 780, 790, 948, 1027, 1040, 1185, 1264, 1560, 1580, 1896, 2054, 2370, 3081, 3120, 3160, 3792, 4108, 4740, 5135, 6162, 6241, 6320, 8216, 9480, 10270, 12324, 12482, 15405, 16432, 18723, 18960, 20540, 24648, 24964, 30810, 31205, 37446, 41080, 49296, 49928, 61620, 62410, 74892, 81133, 82160, 93615, 99856, 123240, 124820, 149784, 162266, 187230, 243399, 246480, 249640, 299568, 324532, 374460, 405665, 486798, 499280, 649064, 748920, 811330, 973596, 1216995, 1298128, 1497840, 1622660, 1947192, 2433990, 3245320, 3894384, 4867980, 6490640, 9735960, 19471920]

約数ペア:

[(1, 19471920), (2, 9735960), (3, 6490640), (4, 4867980), (5, 3894384), (6, 3245320), (8, 2433990), (10, 1947192), (12, 1622660), (13, 1497840), (15, 1298128), (16, 1216995), (20, 973596), (24, 811330), (26, 748920), (30, 649064), (39, 499280), (40, 486798), (48, 405665), (52, 374460), (60, 324532), (65, 299568), (78, 249640), (79, 246480), (80, 243399), (104, 187230), (120, 162266), (130, 149784), (156, 124820), (158, 123240), (195, 99856), (208, 93615), (237, 82160), (240, 81133), (260, 74892), (312, 62410), (316, 61620), (390, 49928), (395, 49296), (474, 41080), (520, 37446), (624, 31205), (632, 30810), (780, 24964), (790, 24648), (948, 20540), (1027, 18960), (1040, 18723), (1185, 16432), (1264, 15405), (1560, 12482), (1580, 12324), (1896, 10270), (2054, 9480), (2370, 8216), (3081, 6320), (3120, 6241), (3160, 6162), (3792, 5135), (4108, 4740)]