2518640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1657}}^1$

素因数の和:1689

約数の個数: 40

約数和(自身を含む): 6167760

約数和(自身を除く): 3649120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1657, 3314, 6628, 8285, 13256, 16570, 26512, 31483, 33140, 62966, 66280, 125932, 132560, 157415, 251864, 314830, 503728, 629660, 1259320, 2518640]

約数ペア:

[(1, 2518640), (2, 1259320), (4, 629660), (5, 503728), (8, 314830), (10, 251864), (16, 157415), (19, 132560), (20, 125932), (38, 66280), (40, 62966), (76, 33140), (80, 31483), (95, 26512), (152, 16570), (190, 13256), (304, 8285), (380, 6628), (760, 3314), (1520, 1657)]