28718970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1019

約数の個数: 64

約数和(自身を含む): 79349760

約数和(自身を除く): 50630790

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 163, 210, 326, 489, 815, 839, 978, 1141, 1630, 1678, 2282, 2445, 2517, 3423, 4195, 4890, 5034, 5705, 5873, 6846, 8390, 11410, 11746, 12585, 17115, 17619, 25170, 29365, 34230, 35238, 58730, 88095, 136757, 176190, 273514, 410271, 683785, 820542, 957299, 1367570, 1914598, 2051355, 2871897, 4102710, 4786495, 5743794, 9572990, 14359485, 28718970]

約数ペア:

[(1, 28718970), (2, 14359485), (3, 9572990), (5, 5743794), (6, 4786495), (7, 4102710), (10, 2871897), (14, 2051355), (15, 1914598), (21, 1367570), (30, 957299), (35, 820542), (42, 683785), (70, 410271), (105, 273514), (163, 176190), (210, 136757), (326, 88095), (489, 58730), (815, 35238), (839, 34230), (978, 29365), (1141, 25170), (1630, 17619), (1678, 17115), (2282, 12585), (2445, 11746), (2517, 11410), (3423, 8390), (4195, 6846), (4890, 5873), (5034, 5705)]