68426920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 160473600

約数和(自身を除く): 92046680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 139, 155, 248, 278, 310, 397, 556, 620, 695, 794, 1112, 1240, 1390, 1588, 1985, 2780, 3176, 3970, 4309, 5560, 7940, 8618, 12307, 15880, 17236, 21545, 24614, 34472, 43090, 49228, 55183, 61535, 86180, 98456, 110366, 123070, 172360, 220732, 246140, 275915, 441464, 492280, 551830, 1103660, 1710673, 2207320, 3421346, 6842692, 8553365, 13685384, 17106730, 34213460, 68426920]

約数ペア:

[(1, 68426920), (2, 34213460), (4, 17106730), (5, 13685384), (8, 8553365), (10, 6842692), (20, 3421346), (31, 2207320), (40, 1710673), (62, 1103660), (124, 551830), (139, 492280), (155, 441464), (248, 275915), (278, 246140), (310, 220732), (397, 172360), (556, 123070), (620, 110366), (695, 98456), (794, 86180), (1112, 61535), (1240, 55183), (1390, 49228), (1588, 43090), (1985, 34472), (2780, 24614), (3176, 21545), (3970, 17236), (4309, 15880), (5560, 12307), (7940, 8618)]