28334000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:511

約数の個数: 80

約数和(自身を含む): 70876416

約数和(自身を除く): 42542416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 457, 496, 500, 620, 775, 914, 1000, 1240, 1550, 1828, 2000, 2285, 2480, 3100, 3656, 3875, 4570, 6200, 7312, 7750, 9140, 11425, 12400, 14167, 15500, 18280, 22850, 28334, 31000, 36560, 45700, 56668, 57125, 62000, 70835, 91400, 113336, 114250, 141670, 182800, 226672, 228500, 283340, 354175, 457000, 566680, 708350, 914000, 1133360, 1416700, 1770875, 2833400, 3541750, 5666800, 7083500, 14167000, 28334000]

約数ペア:

[(1, 28334000), (2, 14167000), (4, 7083500), (5, 5666800), (8, 3541750), (10, 2833400), (16, 1770875), (20, 1416700), (25, 1133360), (31, 914000), (40, 708350), (50, 566680), (62, 457000), (80, 354175), (100, 283340), (124, 228500), (125, 226672), (155, 182800), (200, 141670), (248, 114250), (250, 113336), (310, 91400), (400, 70835), (457, 62000), (496, 57125), (500, 56668), (620, 45700), (775, 36560), (914, 31000), (1000, 28334), (1240, 22850), (1550, 18280), (1828, 15500), (2000, 14167), (2285, 12400), (2480, 11425), (3100, 9140), (3656, 7750), (3875, 7312), (4570, 6200)]