778129660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{505279}}^1$

素因数の和:505306

約数の個数: 48

約数和(自身を含む): 2037288960

約数和(自身を除く): 1259159300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 505279, 1010558, 2021116, 2526395, 3536953, 5052790, 5558069, 7073906, 10105580, 11116138, 14147812, 17684765, 22232276, 27790345, 35369530, 38906483, 55580690, 70739060, 77812966, 111161380, 155625932, 194532415, 389064830, 778129660]

約数ペア:

[(1, 778129660), (2, 389064830), (4, 194532415), (5, 155625932), (7, 111161380), (10, 77812966), (11, 70739060), (14, 55580690), (20, 38906483), (22, 35369530), (28, 27790345), (35, 22232276), (44, 17684765), (55, 14147812), (70, 11116138), (77, 10105580), (110, 7073906), (140, 5558069), (154, 5052790), (220, 3536953), (308, 2526395), (385, 2021116), (770, 1010558), (1540, 505279)]