656246540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{3221}}^1$

素因数の和:3458

約数の個数: 48

約数和(自身を含む): 1409534784

約数和(自身を除く): 753288244

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 167, 244, 305, 334, 610, 668, 835, 1220, 1670, 3221, 3340, 6442, 10187, 12884, 16105, 20374, 32210, 40748, 50935, 64420, 101870, 196481, 203740, 392962, 537907, 785924, 982405, 1075814, 1964810, 2151628, 2689535, 3929620, 5379070, 10758140, 32812327, 65624654, 131249308, 164061635, 328123270, 656246540]

約数ペア:

[(1, 656246540), (2, 328123270), (4, 164061635), (5, 131249308), (10, 65624654), (20, 32812327), (61, 10758140), (122, 5379070), (167, 3929620), (244, 2689535), (305, 2151628), (334, 1964810), (610, 1075814), (668, 982405), (835, 785924), (1220, 537907), (1670, 392962), (3221, 203740), (3340, 196481), (6442, 101870), (10187, 64420), (12884, 50935), (16105, 40748), (20374, 32210)]