28204700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:431

約数の個数: 72

約数和(自身を含む): 66370752

約数和(自身を除く): 38166052

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 47, 50, 68, 85, 94, 100, 170, 188, 235, 340, 353, 425, 470, 706, 799, 850, 940, 1175, 1412, 1598, 1700, 1765, 2350, 3196, 3530, 3995, 4700, 6001, 7060, 7990, 8825, 12002, 15980, 16591, 17650, 19975, 24004, 30005, 33182, 35300, 39950, 60010, 66364, 79900, 82955, 120020, 150025, 165910, 282047, 300050, 331820, 414775, 564094, 600100, 829550, 1128188, 1410235, 1659100, 2820470, 5640940, 7051175, 14102350, 28204700]

約数ペア:

[(1, 28204700), (2, 14102350), (4, 7051175), (5, 5640940), (10, 2820470), (17, 1659100), (20, 1410235), (25, 1128188), (34, 829550), (47, 600100), (50, 564094), (68, 414775), (85, 331820), (94, 300050), (100, 282047), (170, 165910), (188, 150025), (235, 120020), (340, 82955), (353, 79900), (425, 66364), (470, 60010), (706, 39950), (799, 35300), (850, 33182), (940, 30005), (1175, 24004), (1412, 19975), (1598, 17650), (1700, 16591), (1765, 15980), (2350, 12002), (3196, 8825), (3530, 7990), (3995, 7060), (4700, 6001)]