20401380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{113341}}^1$

素因数の和:113356

約数の個数: 36

約数和(自身を含む): 61884732

約数和(自身を除く): 41483352

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 113341, 226682, 340023, 453364, 566705, 680046, 1020069, 1133410, 1360092, 1700115, 2040138, 2266820, 3400230, 4080276, 5100345, 6800460, 10200690, 20401380]

約数ペア:

[(1, 20401380), (2, 10200690), (3, 6800460), (4, 5100345), (5, 4080276), (6, 3400230), (9, 2266820), (10, 2040138), (12, 1700115), (15, 1360092), (18, 1133410), (20, 1020069), (30, 680046), (36, 566705), (45, 453364), (60, 340023), (90, 226682), (180, 113341)]