28706000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:517

約数の個数: 80

約数和(自身を含む): 71804928

約数和(自身を除く): 43098928

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, 463, 496, 500, 620, 775, 926, 1000, 1240, 1550, 1852, 2000, 2315, 2480, 3100, 3704, 3875, 4630, 6200, 7408, 7750, 9260, 11575, 12400, 14353, 15500, 18520, 23150, 28706, 31000, 37040, 46300, 57412, 57875, 62000, 71765, 92600, 114824, 115750, 143530, 185200, 229648, 231500, 287060, 358825, 463000, 574120, 717650, 926000, 1148240, 1435300, 1794125, 2870600, 3588250, 5741200, 7176500, 14353000, 28706000]

約数ペア:

[(1, 28706000), (2, 14353000), (4, 7176500), (5, 5741200), (8, 3588250), (10, 2870600), (16, 1794125), (20, 1435300), (25, 1148240), (31, 926000), (40, 717650), (50, 574120), (62, 463000), (80, 358825), (100, 287060), (124, 231500), (125, 229648), (155, 185200), (200, 143530), (248, 115750), (250, 114824), (310, 92600), (400, 71765), (463, 62000), (496, 57875), (500, 57412), (620, 46300), (775, 37040), (926, 31000), (1000, 28706), (1240, 23150), (1550, 18520), (1852, 15500), (2000, 14353), (2315, 12400), (2480, 11575), (3100, 9260), (3704, 7750), (3875, 7408), (4630, 6200)]