168278540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4051}}^1$

素因数の和:4158

約数の個数: 48

約数和(自身を含む): 370320384

約数和(自身を除く): 202041844

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 67, 124, 134, 155, 268, 310, 335, 620, 670, 1340, 2077, 4051, 4154, 8102, 8308, 10385, 16204, 20255, 20770, 40510, 41540, 81020, 125581, 251162, 271417, 502324, 542834, 627905, 1085668, 1255810, 1357085, 2511620, 2714170, 5428340, 8413927, 16827854, 33655708, 42069635, 84139270, 168278540]

約数ペア:

[(1, 168278540), (2, 84139270), (4, 42069635), (5, 33655708), (10, 16827854), (20, 8413927), (31, 5428340), (62, 2714170), (67, 2511620), (124, 1357085), (134, 1255810), (155, 1085668), (268, 627905), (310, 542834), (335, 502324), (620, 271417), (670, 251162), (1340, 125581), (2077, 81020), (4051, 41540), (4154, 40510), (8102, 20770), (8308, 20255), (10385, 16204)]