123944720

素因数分解:

$2^4\times 5^1\times {\mathrm{659}}^1\times {\mathrm{2351}}^1$

素因数の和:3023

約数の個数: 40

約数和(自身を含む): 288731520

約数和(自身を除く): 164786800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 659, 1318, 2351, 2636, 3295, 4702, 5272, 6590, 9404, 10544, 11755, 13180, 18808, 23510, 26360, 37616, 47020, 52720, 94040, 188080, 1549309, 3098618, 6197236, 7746545, 12394472, 15493090, 24788944, 30986180, 61972360, 123944720]

約数ペア:

[(1, 123944720), (2, 61972360), (4, 30986180), (5, 24788944), (8, 15493090), (10, 12394472), (16, 7746545), (20, 6197236), (40, 3098618), (80, 1549309), (659, 188080), (1318, 94040), (2351, 52720), (2636, 47020), (3295, 37616), (4702, 26360), (5272, 23510), (6590, 18808), (9404, 13180), (10544, 11755)]