388890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:191

約数の個数: 48

約数和(自身を含む): 1053000

約数和(自身を除く): 664110

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 149, 174, 261, 290, 298, 435, 447, 522, 745, 870, 894, 1305, 1341, 1490, 2235, 2610, 2682, 4321, 4470, 6705, 8642, 12963, 13410, 21605, 25926, 38889, 43210, 64815, 77778, 129630, 194445, 388890]

約数ペア:

[(1, 388890), (2, 194445), (3, 129630), (5, 77778), (6, 64815), (9, 43210), (10, 38889), (15, 25926), (18, 21605), (29, 13410), (30, 12963), (45, 8642), (58, 6705), (87, 4470), (90, 4321), (145, 2682), (149, 2610), (174, 2235), (261, 1490), (290, 1341), (298, 1305), (435, 894), (447, 870), (522, 745)]