1561648

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 3481920

約数和(自身を除く): 1920272

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 467, 836, 934, 1672, 1868, 3344, 3736, 5137, 7472, 8873, 10274, 17746, 20548, 35492, 41096, 70984, 82192, 97603, 141968, 195206, 390412, 780824, 1561648]

約数ペア:

[(1, 1561648), (2, 780824), (4, 390412), (8, 195206), (11, 141968), (16, 97603), (19, 82192), (22, 70984), (38, 41096), (44, 35492), (76, 20548), (88, 17746), (152, 10274), (176, 8873), (209, 7472), (304, 5137), (418, 3736), (467, 3344), (836, 1868), (934, 1672)]