397253640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{472921}}^1$

素因数の和:472942

約数の個数: 64

約数和(自身を含む): 1362015360

約数和(自身を除く): 964761720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 472921, 945842, 1418763, 1891684, 2364605, 2837526, 3310447, 3783368, 4729210, 5675052, 6620894, 7093815, 9458420, 9931341, 11350104, 13241788, 14187630, 16552235, 18916840, 19862682, 26483576, 28375260, 33104470, 39725364, 49656705, 56750520, 66208940, 79450728, 99313410, 132417880, 198626820, 397253640]

約数ペア:

[(1, 397253640), (2, 198626820), (3, 132417880), (4, 99313410), (5, 79450728), (6, 66208940), (7, 56750520), (8, 49656705), (10, 39725364), (12, 33104470), (14, 28375260), (15, 26483576), (20, 19862682), (21, 18916840), (24, 16552235), (28, 14187630), (30, 13241788), (35, 11350104), (40, 9931341), (42, 9458420), (56, 7093815), (60, 6620894), (70, 5675052), (84, 4729210), (105, 3783368), (120, 3310447), (140, 2837526), (168, 2364605), (210, 1891684), (280, 1418763), (420, 945842), (840, 472921)]