220139990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{443}}^1$

素因数の和:717

約数の個数: 64

約数和(自身を含む): 470568960

約数和(自身を除く): 250428970

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 229, 310, 434, 443, 458, 886, 1085, 1145, 1603, 2170, 2215, 2290, 3101, 3206, 4430, 6202, 7099, 8015, 13733, 14198, 15505, 16030, 27466, 31010, 35495, 49693, 68665, 70990, 96131, 99386, 101447, 137330, 192262, 202894, 248465, 480655, 496930, 507235, 710129, 961310, 1014470, 1420258, 3144857, 3550645, 6289714, 7101290, 15724285, 22013999, 31448570, 44027998, 110069995, 220139990]

約数ペア:

[(1, 220139990), (2, 110069995), (5, 44027998), (7, 31448570), (10, 22013999), (14, 15724285), (31, 7101290), (35, 6289714), (62, 3550645), (70, 3144857), (155, 1420258), (217, 1014470), (229, 961310), (310, 710129), (434, 507235), (443, 496930), (458, 480655), (886, 248465), (1085, 202894), (1145, 192262), (1603, 137330), (2170, 101447), (2215, 99386), (2290, 96131), (3101, 70990), (3206, 68665), (4430, 49693), (6202, 35495), (7099, 31010), (8015, 27466), (13733, 16030), (14198, 15505)]