9919988920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{9719}}^1$

素因数の和:9845

約数の個数: 128

約数和(自身を含む): 25194240000

約数和(自身を除く): 15274251080

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 79, 85, 95, 136, 152, 158, 170, 190, 316, 323, 340, 380, 395, 632, 646, 680, 760, 790, 1292, 1343, 1501, 1580, 1615, 2584, 2686, 3002, 3160, 3230, 5372, 6004, 6460, 6715, 7505, 9719, 10744, 12008, 12920, 13430, 15010, 19438, 25517, 26860, 30020, 38876, 48595, 51034, 53720, 60040, 77752, 97190, 102068, 127585, 165223, 184661, 194380, 204136, 255170, 330446, 369322, 388760, 510340, 660892, 738644, 767801, 826115, 923305, 1020680, 1321784, 1477288, 1535602, 1652230, 1846610, 3071204, 3139237, 3304460, 3693220, 3839005, 6142408, 6278474, 6608920, 7386440, 7678010, 12556948, 13052617, 14588219, 15356020, 15696185, 25113896, 26105234, 29176438, 30712040, 31392370, 52210468, 58352876, 62784740, 65263085, 72941095, 104420936, 116705752, 125569480, 130526170, 145882190, 247999723, 261052340, 291764380, 495999446, 522104680, 583528760, 991998892, 1239998615, 1983997784, 2479997230, 4959994460, 9919988920]

約数ペア:

[(1, 9919988920), (2, 4959994460), (4, 2479997230), (5, 1983997784), (8, 1239998615), (10, 991998892), (17, 583528760), (19, 522104680), (20, 495999446), (34, 291764380), (38, 261052340), (40, 247999723), (68, 145882190), (76, 130526170), (79, 125569480), (85, 116705752), (95, 104420936), (136, 72941095), (152, 65263085), (158, 62784740), (170, 58352876), (190, 52210468), (316, 31392370), (323, 30712040), (340, 29176438), (380, 26105234), (395, 25113896), (632, 15696185), (646, 15356020), (680, 14588219), (760, 13052617), (790, 12556948), (1292, 7678010), (1343, 7386440), (1501, 6608920), (1580, 6278474), (1615, 6142408), (2584, 3839005), (2686, 3693220), (3002, 3304460), (3160, 3139237), (3230, 3071204), (5372, 1846610), (6004, 1652230), (6460, 1535602), (6715, 1477288), (7505, 1321784), (9719, 1020680), (10744, 923305), (12008, 826115), (12920, 767801), (13430, 738644), (15010, 660892), (19438, 510340), (25517, 388760), (26860, 369322), (30020, 330446), (38876, 255170), (48595, 204136), (51034, 194380), (53720, 184661), (60040, 165223), (77752, 127585), (97190, 102068)]