16868840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 39560400

約数和(自身を除く): 22691560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 73, 106, 109, 146, 212, 218, 265, 292, 365, 424, 436, 530, 545, 584, 730, 872, 1060, 1090, 1460, 2120, 2180, 2920, 3869, 4360, 5777, 7738, 7957, 11554, 15476, 15914, 19345, 23108, 28885, 30952, 31828, 38690, 39785, 46216, 57770, 63656, 77380, 79570, 115540, 154760, 159140, 231080, 318280, 421721, 843442, 1686884, 2108605, 3373768, 4217210, 8434420, 16868840]

約数ペア:

[(1, 16868840), (2, 8434420), (4, 4217210), (5, 3373768), (8, 2108605), (10, 1686884), (20, 843442), (40, 421721), (53, 318280), (73, 231080), (106, 159140), (109, 154760), (146, 115540), (212, 79570), (218, 77380), (265, 63656), (292, 57770), (365, 46216), (424, 39785), (436, 38690), (530, 31828), (545, 30952), (584, 28885), (730, 23108), (872, 19345), (1060, 15914), (1090, 15476), (1460, 11554), (2120, 7957), (2180, 7738), (2920, 5777), (3869, 4360)]