778814140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103291}}^1$

素因数の和:103342

約数の個数: 48

約数和(自身を含む): 1822070880

約数和(自身を除く): 1043256740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 103291, 206582, 413164, 516455, 1032910, 1342783, 2065820, 2685566, 2995439, 5371132, 5990878, 6713915, 11981756, 13427830, 14977195, 26855660, 29954390, 38940707, 59908780, 77881414, 155762828, 194703535, 389407070, 778814140]

約数ペア:

[(1, 778814140), (2, 389407070), (4, 194703535), (5, 155762828), (10, 77881414), (13, 59908780), (20, 38940707), (26, 29954390), (29, 26855660), (52, 14977195), (58, 13427830), (65, 11981756), (116, 6713915), (130, 5990878), (145, 5371132), (260, 2995439), (290, 2685566), (377, 2065820), (580, 1342783), (754, 1032910), (1508, 516455), (1885, 413164), (3770, 206582), (7540, 103291)]