128491590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{138163}}^1$

素因数の和:138204

約数の個数: 32

約数和(自身を含む): 318329856

約数和(自身を除く): 189838266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 138163, 276326, 414489, 690815, 828978, 1381630, 2072445, 4144890, 4283053, 8566106, 12849159, 21415265, 25698318, 42830530, 64245795, 128491590]

約数ペア:

[(1, 128491590), (2, 64245795), (3, 42830530), (5, 25698318), (6, 21415265), (10, 12849159), (15, 8566106), (30, 4283053), (31, 4144890), (62, 2072445), (93, 1381630), (155, 828978), (186, 690815), (310, 414489), (465, 276326), (930, 138163)]