280319732

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 677827584

約数和(自身を除く): 397507852

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 31, 34, 44, 62, 68, 77, 119, 121, 124, 154, 157, 187, 217, 238, 242, 308, 314, 341, 374, 434, 476, 484, 527, 628, 682, 748, 847, 868, 1054, 1099, 1309, 1364, 1694, 1727, 2057, 2108, 2198, 2387, 2618, 2669, 3388, 3454, 3689, 3751, 4114, 4396, 4774, 4867, 5236, 5338, 5797, 6908, 7378, 7502, 8228, 9548, 9734, 10676, 11594, 12089, 14399, 14756, 15004, 18683, 18997, 19468, 23188, 24178, 26257, 28798, 29359, 34069, 37366, 37994, 40579, 48356, 52514, 53537, 57596, 58718, 63767, 68138, 74732, 75988, 81158, 82739, 105028, 107074, 117436, 127534, 132979, 136276, 162316, 165478, 205513, 214148, 255068, 265958, 322949, 330956, 374759, 411026, 446369, 531916, 579173, 588907, 645898, 749518, 822052, 892738, 910129, 1158346, 1177814, 1291796, 1499036, 1785476, 1820258, 2260643, 2316692, 2355628, 3640516, 4122349, 4521286, 6370903, 8244698, 9042572, 10011419, 12741806, 16489396, 20022838, 25483612, 40045676, 70079933, 140159866, 280319732]

約数ペア:

[(1, 280319732), (2, 140159866), (4, 70079933), (7, 40045676), (11, 25483612), (14, 20022838), (17, 16489396), (22, 12741806), (28, 10011419), (31, 9042572), (34, 8244698), (44, 6370903), (62, 4521286), (68, 4122349), (77, 3640516), (119, 2355628), (121, 2316692), (124, 2260643), (154, 1820258), (157, 1785476), (187, 1499036), (217, 1291796), (238, 1177814), (242, 1158346), (308, 910129), (314, 892738), (341, 822052), (374, 749518), (434, 645898), (476, 588907), (484, 579173), (527, 531916), (628, 446369), (682, 411026), (748, 374759), (847, 330956), (868, 322949), (1054, 265958), (1099, 255068), (1309, 214148), (1364, 205513), (1694, 165478), (1727, 162316), (2057, 136276), (2108, 132979), (2198, 127534), (2387, 117436), (2618, 107074), (2669, 105028), (3388, 82739), (3454, 81158), (3689, 75988), (3751, 74732), (4114, 68138), (4396, 63767), (4774, 58718), (4867, 57596), (5236, 53537), (5338, 52514), (5797, 48356), (6908, 40579), (7378, 37994), (7502, 37366), (8228, 34069), (9548, 29359), (9734, 28798), (10676, 26257), (11594, 24178), (12089, 23188), (14399, 19468), (14756, 18997), (15004, 18683)]