1645480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 3824640

約数和(自身を除く): 2179160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1327, 2654, 5308, 6635, 10616, 13270, 26540, 41137, 53080, 82274, 164548, 205685, 329096, 411370, 822740, 1645480]

約数ペア:

[(1, 1645480), (2, 822740), (4, 411370), (5, 329096), (8, 205685), (10, 164548), (20, 82274), (31, 53080), (40, 41137), (62, 26540), (124, 13270), (155, 10616), (248, 6635), (310, 5308), (620, 2654), (1240, 1327)]