766454020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{499}}^1\times {\mathrm{1259}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 1640520000

約数和(自身を除く): 874065980

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 499, 610, 998, 1220, 1259, 1996, 2495, 2518, 4990, 5036, 6295, 9980, 12590, 25180, 30439, 60878, 76799, 121756, 152195, 153598, 304390, 307196, 383995, 608780, 628241, 767990, 1256482, 1535980, 2512964, 3141205, 6282410, 12564820, 38322701, 76645402, 153290804, 191613505, 383227010, 766454020]

約数ペア:

[(1, 766454020), (2, 383227010), (4, 191613505), (5, 153290804), (10, 76645402), (20, 38322701), (61, 12564820), (122, 6282410), (244, 3141205), (305, 2512964), (499, 1535980), (610, 1256482), (998, 767990), (1220, 628241), (1259, 608780), (1996, 383995), (2495, 307196), (2518, 304390), (4990, 153598), (5036, 152195), (6295, 121756), (9980, 76799), (12590, 60878), (25180, 30439)]