131369940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1870

約数の個数: 144

約数和(自身を含む): 443229696

約数和(自身を除く): 311859756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 279, 310, 372, 390, 403, 465, 468, 558, 585, 620, 780, 806, 930, 1116, 1170, 1209, 1395, 1612, 1811, 1860, 2015, 2340, 2418, 2790, 3622, 3627, 4030, 4836, 5433, 5580, 6045, 7244, 7254, 8060, 9055, 10866, 12090, 14508, 16299, 18110, 18135, 21732, 23543, 24180, 27165, 32598, 36220, 36270, 47086, 54330, 56141, 65196, 70629, 72540, 81495, 94172, 108660, 112282, 117715, 141258, 162990, 168423, 211887, 224564, 235430, 280705, 282516, 325980, 336846, 353145, 423774, 470860, 505269, 561410, 673692, 706290, 729833, 842115, 847548, 1010538, 1059435, 1122820, 1412580, 1459666, 1684230, 2021076, 2118870, 2189499, 2526345, 2919332, 3368460, 3649165, 4237740, 4378998, 5052690, 6568497, 7298330, 8757996, 10105380, 10947495, 13136994, 14596660, 21894990, 26273988, 32842485, 43789980, 65684970, 131369940]

約数ペア:

[(1, 131369940), (2, 65684970), (3, 43789980), (4, 32842485), (5, 26273988), (6, 21894990), (9, 14596660), (10, 13136994), (12, 10947495), (13, 10105380), (15, 8757996), (18, 7298330), (20, 6568497), (26, 5052690), (30, 4378998), (31, 4237740), (36, 3649165), (39, 3368460), (45, 2919332), (52, 2526345), (60, 2189499), (62, 2118870), (65, 2021076), (78, 1684230), (90, 1459666), (93, 1412580), (117, 1122820), (124, 1059435), (130, 1010538), (155, 847548), (156, 842115), (180, 729833), (186, 706290), (195, 673692), (234, 561410), (260, 505269), (279, 470860), (310, 423774), (372, 353145), (390, 336846), (403, 325980), (465, 282516), (468, 280705), (558, 235430), (585, 224564), (620, 211887), (780, 168423), (806, 162990), (930, 141258), (1116, 117715), (1170, 112282), (1209, 108660), (1395, 94172), (1612, 81495), (1811, 72540), (1860, 70629), (2015, 65196), (2340, 56141), (2418, 54330), (2790, 47086), (3622, 36270), (3627, 36220), (4030, 32598), (4836, 27165), (5433, 24180), (5580, 23543), (6045, 21732), (7244, 18135), (7254, 18110), (8060, 16299), (9055, 14508), (10866, 12090)]