211537180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{1259}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 460615680

約数和(自身を除く): 249078500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 271, 310, 542, 620, 1084, 1259, 1355, 2518, 2710, 5036, 5420, 6295, 8401, 12590, 16802, 25180, 33604, 39029, 42005, 78058, 84010, 156116, 168020, 195145, 341189, 390290, 682378, 780580, 1364756, 1705945, 3411890, 6823780, 10576859, 21153718, 42307436, 52884295, 105768590, 211537180]

約数ペア:

[(1, 211537180), (2, 105768590), (4, 52884295), (5, 42307436), (10, 21153718), (20, 10576859), (31, 6823780), (62, 3411890), (124, 1705945), (155, 1364756), (271, 780580), (310, 682378), (542, 390290), (620, 341189), (1084, 195145), (1259, 168020), (1355, 156116), (2518, 84010), (2710, 78058), (5036, 42005), (5420, 39029), (6295, 33604), (8401, 25180), (12590, 16802)]