280803075

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{701}}^1$

素因数の和:837

約数の個数: 72

約数和(自身を含む): 545790960

約数和(自身を除く): 264987885

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 109, 147, 175, 245, 327, 525, 545, 701, 735, 763, 1225, 1635, 2103, 2289, 2725, 3505, 3675, 3815, 4907, 5341, 8175, 10515, 11445, 14721, 16023, 17525, 19075, 24535, 26705, 34349, 52575, 57225, 73605, 76409, 80115, 103047, 122675, 133525, 171745, 229227, 368025, 382045, 400575, 515235, 534863, 858725, 1146135, 1604589, 1910225, 2576175, 2674315, 3744041, 5730675, 8022945, 11232123, 13371575, 18720205, 40114725, 56160615, 93601025, 280803075]

約数ペア:

[(1, 280803075), (3, 93601025), (5, 56160615), (7, 40114725), (15, 18720205), (21, 13371575), (25, 11232123), (35, 8022945), (49, 5730675), (75, 3744041), (105, 2674315), (109, 2576175), (147, 1910225), (175, 1604589), (245, 1146135), (327, 858725), (525, 534863), (545, 515235), (701, 400575), (735, 382045), (763, 368025), (1225, 229227), (1635, 171745), (2103, 133525), (2289, 122675), (2725, 103047), (3505, 80115), (3675, 76409), (3815, 73605), (4907, 57225), (5341, 52575), (8175, 34349), (10515, 26705), (11445, 24535), (14721, 19075), (16023, 17525)]