81874540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:403

約数の個数: 96

約数和(自身を含む): 199402560

約数和(自身を除く): 117528020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 41, 44, 55, 58, 82, 110, 116, 145, 164, 205, 220, 290, 313, 319, 410, 451, 580, 626, 638, 820, 902, 1189, 1252, 1276, 1565, 1595, 1804, 2255, 2378, 3130, 3190, 3443, 4510, 4756, 5945, 6260, 6380, 6886, 9020, 9077, 11890, 12833, 13079, 13772, 17215, 18154, 23780, 25666, 26158, 34430, 36308, 45385, 51332, 52316, 64165, 65395, 68860, 90770, 99847, 128330, 130790, 141163, 181540, 199694, 256660, 261580, 282326, 372157, 399388, 499235, 564652, 705815, 744314, 998470, 1411630, 1488628, 1860785, 1996940, 2823260, 3721570, 4093727, 7443140, 8187454, 16374908, 20468635, 40937270, 81874540]

約数ペア:

[(1, 81874540), (2, 40937270), (4, 20468635), (5, 16374908), (10, 8187454), (11, 7443140), (20, 4093727), (22, 3721570), (29, 2823260), (41, 1996940), (44, 1860785), (55, 1488628), (58, 1411630), (82, 998470), (110, 744314), (116, 705815), (145, 564652), (164, 499235), (205, 399388), (220, 372157), (290, 282326), (313, 261580), (319, 256660), (410, 199694), (451, 181540), (580, 141163), (626, 130790), (638, 128330), (820, 99847), (902, 90770), (1189, 68860), (1252, 65395), (1276, 64165), (1565, 52316), (1595, 51332), (1804, 45385), (2255, 36308), (2378, 34430), (3130, 26158), (3190, 25666), (3443, 23780), (4510, 18154), (4756, 17215), (5945, 13772), (6260, 13079), (6380, 12833), (6886, 11890), (9020, 9077)]