19776340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{733}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 44392320

約数和(自身を除く): 24615980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 733, 1349, 1420, 1466, 2698, 2932, 3665, 5396, 6745, 7330, 13490, 13927, 14660, 26980, 27854, 52043, 55708, 69635, 104086, 139270, 208172, 260215, 278540, 520430, 988817, 1040860, 1977634, 3955268, 4944085, 9888170, 19776340]

約数ペア:

[(1, 19776340), (2, 9888170), (4, 4944085), (5, 3955268), (10, 1977634), (19, 1040860), (20, 988817), (38, 520430), (71, 278540), (76, 260215), (95, 208172), (142, 139270), (190, 104086), (284, 69635), (355, 55708), (380, 52043), (710, 27854), (733, 26980), (1349, 14660), (1420, 13927), (1466, 13490), (2698, 7330), (2932, 6745), (3665, 5396)]