163380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{389}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 524160

約数和(自身を除く): 360780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 389, 420, 778, 1167, 1556, 1945, 2334, 2723, 3890, 4668, 5446, 5835, 7780, 8169, 10892, 11670, 13615, 16338, 23340, 27230, 32676, 40845, 54460, 81690, 163380]

約数ペア:

[(1, 163380), (2, 81690), (3, 54460), (4, 40845), (5, 32676), (6, 27230), (7, 23340), (10, 16338), (12, 13615), (14, 11670), (15, 10892), (20, 8169), (21, 7780), (28, 5835), (30, 5446), (35, 4668), (42, 3890), (60, 2723), (70, 2334), (84, 1945), (105, 1556), (140, 1167), (210, 778), (389, 420)]