4998440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 12096000

約数和(自身を除く): 7097560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 139, 145, 155, 232, 248, 278, 290, 310, 556, 580, 620, 695, 899, 1112, 1160, 1240, 1390, 1798, 2780, 3596, 4031, 4309, 4495, 5560, 7192, 8062, 8618, 8990, 16124, 17236, 17980, 20155, 21545, 32248, 34472, 35960, 40310, 43090, 80620, 86180, 124961, 161240, 172360, 249922, 499844, 624805, 999688, 1249610, 2499220, 4998440]

約数ペア:

[(1, 4998440), (2, 2499220), (4, 1249610), (5, 999688), (8, 624805), (10, 499844), (20, 249922), (29, 172360), (31, 161240), (40, 124961), (58, 86180), (62, 80620), (116, 43090), (124, 40310), (139, 35960), (145, 34472), (155, 32248), (232, 21545), (248, 20155), (278, 17980), (290, 17236), (310, 16124), (556, 8990), (580, 8618), (620, 8062), (695, 7192), (899, 5560), (1112, 4495), (1160, 4309), (1240, 4031), (1390, 3596), (1798, 2780)]