20120886975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1\times {\mathrm{829}}^1$

素因数の和:1489

約数の個数: 96

約数和(自身を含む): 38592529920

約数和(自身を除く): 18471642945

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 83, 105, 175, 249, 415, 525, 557, 581, 829, 1245, 1671, 1743, 2075, 2487, 2785, 2905, 3899, 4145, 5803, 6225, 8355, 8715, 11697, 12435, 13925, 14525, 17409, 19495, 20725, 29015, 41775, 43575, 46231, 58485, 62175, 68807, 87045, 97475, 138693, 145075, 206421, 231155, 292425, 323617, 344035, 435225, 461753, 481649, 693465, 970851, 1032105, 1155775, 1385259, 1444947, 1618085, 1720175, 2308765, 2408245, 3232271, 3467325, 4854255, 5160525, 6926295, 7224735, 8090425, 9696813, 11543825, 12041225, 16161355, 24271275, 34631475, 36123675, 38325499, 48484065, 80806775, 114976497, 191627495, 242420325, 268278493, 574882485, 804835479, 958137475, 1341392465, 2874412425, 4024177395, 6706962325, 20120886975]

約数ペア:

[(1, 20120886975), (3, 6706962325), (5, 4024177395), (7, 2874412425), (15, 1341392465), (21, 958137475), (25, 804835479), (35, 574882485), (75, 268278493), (83, 242420325), (105, 191627495), (175, 114976497), (249, 80806775), (415, 48484065), (525, 38325499), (557, 36123675), (581, 34631475), (829, 24271275), (1245, 16161355), (1671, 12041225), (1743, 11543825), (2075, 9696813), (2487, 8090425), (2785, 7224735), (2905, 6926295), (3899, 5160525), (4145, 4854255), (5803, 3467325), (6225, 3232271), (8355, 2408245), (8715, 2308765), (11697, 1720175), (12435, 1618085), (13925, 1444947), (14525, 1385259), (17409, 1155775), (19495, 1032105), (20725, 970851), (29015, 693465), (41775, 481649), (43575, 461753), (46231, 435225), (58485, 344035), (62175, 323617), (68807, 292425), (87045, 231155), (97475, 206421), (138693, 145075)]