28399520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:282

約数の個数: 96

約数和(自身を含む): 72748368

約数和(自身を除く): 44348848

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 53, 68, 80, 85, 106, 136, 160, 170, 197, 212, 265, 272, 340, 394, 424, 530, 544, 680, 788, 848, 901, 985, 1060, 1360, 1576, 1696, 1802, 1970, 2120, 2720, 3152, 3349, 3604, 3940, 4240, 4505, 6304, 6698, 7208, 7880, 8480, 9010, 10441, 13396, 14416, 15760, 16745, 18020, 20882, 26792, 28832, 31520, 33490, 36040, 41764, 52205, 53584, 66980, 72080, 83528, 104410, 107168, 133960, 144160, 167056, 177497, 208820, 267920, 334112, 354994, 417640, 535840, 709988, 835280, 887485, 1419976, 1670560, 1774970, 2839952, 3549940, 5679904, 7099880, 14199760, 28399520]

約数ペア:

[(1, 28399520), (2, 14199760), (4, 7099880), (5, 5679904), (8, 3549940), (10, 2839952), (16, 1774970), (17, 1670560), (20, 1419976), (32, 887485), (34, 835280), (40, 709988), (53, 535840), (68, 417640), (80, 354994), (85, 334112), (106, 267920), (136, 208820), (160, 177497), (170, 167056), (197, 144160), (212, 133960), (265, 107168), (272, 104410), (340, 83528), (394, 72080), (424, 66980), (530, 53584), (544, 52205), (680, 41764), (788, 36040), (848, 33490), (901, 31520), (985, 28832), (1060, 26792), (1360, 20882), (1576, 18020), (1696, 16745), (1802, 15760), (1970, 14416), (2120, 13396), (2720, 10441), (3152, 9010), (3349, 8480), (3604, 7880), (3940, 7208), (4240, 6698), (4505, 6304)]