28903700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 72

約数和(自身を含む): 72412032

約数和(自身を除く): 43508332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 157, 175, 263, 314, 350, 526, 628, 700, 785, 1052, 1099, 1315, 1570, 1841, 2198, 2630, 3140, 3682, 3925, 4396, 5260, 5495, 6575, 7364, 7850, 9205, 10990, 13150, 15700, 18410, 21980, 26300, 27475, 36820, 41291, 46025, 54950, 82582, 92050, 109900, 165164, 184100, 206455, 289037, 412910, 578074, 825820, 1032275, 1156148, 1445185, 2064550, 2890370, 4129100, 5780740, 7225925, 14451850, 28903700]

約数ペア:

[(1, 28903700), (2, 14451850), (4, 7225925), (5, 5780740), (7, 4129100), (10, 2890370), (14, 2064550), (20, 1445185), (25, 1156148), (28, 1032275), (35, 825820), (50, 578074), (70, 412910), (100, 289037), (140, 206455), (157, 184100), (175, 165164), (263, 109900), (314, 92050), (350, 82582), (526, 54950), (628, 46025), (700, 41291), (785, 36820), (1052, 27475), (1099, 26300), (1315, 21980), (1570, 18410), (1841, 15700), (2198, 13150), (2630, 10990), (3140, 9205), (3682, 7850), (3925, 7364), (4396, 6575), (5260, 5495)]