128548010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 251596800

約数和(自身を除く): 123048790

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 79, 145, 155, 158, 181, 290, 310, 362, 395, 790, 899, 905, 1798, 1810, 2291, 2449, 4495, 4582, 4898, 5249, 5611, 8990, 10498, 11222, 11455, 12245, 14299, 22910, 24490, 26245, 28055, 28598, 52490, 56110, 71021, 71495, 142042, 142990, 162719, 325438, 355105, 414671, 443269, 710210, 813595, 829342, 886538, 1627190, 2073355, 2216345, 4146710, 4432690, 12854801, 25709602, 64274005, 128548010]

約数ペア:

[(1, 128548010), (2, 64274005), (5, 25709602), (10, 12854801), (29, 4432690), (31, 4146710), (58, 2216345), (62, 2073355), (79, 1627190), (145, 886538), (155, 829342), (158, 813595), (181, 710210), (290, 443269), (310, 414671), (362, 355105), (395, 325438), (790, 162719), (899, 142990), (905, 142042), (1798, 71495), (1810, 71021), (2291, 56110), (2449, 52490), (4495, 28598), (4582, 28055), (4898, 26245), (5249, 24490), (5611, 22910), (8990, 14299), (10498, 12245), (11222, 11455)]