393442980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{936769}}^1$

素因数の和:936788

約数の個数: 48

約数和(自身を含む): 1259018880

約数和(自身を除く): 865575900

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, 420, 936769, 1873538, 2810307, 3747076, 4683845, 5620614, 6557383, 9367690, 11241228, 13114766, 14051535, 18735380, 19672149, 26229532, 28103070, 32786915, 39344298, 56206140, 65573830, 78688596, 98360745, 131147660, 196721490, 393442980]

約数ペア:

[(1, 393442980), (2, 196721490), (3, 131147660), (4, 98360745), (5, 78688596), (6, 65573830), (7, 56206140), (10, 39344298), (12, 32786915), (14, 28103070), (15, 26229532), (20, 19672149), (21, 18735380), (28, 14051535), (30, 13114766), (35, 11241228), (42, 9367690), (60, 6557383), (70, 5620614), (84, 4683845), (105, 3747076), (140, 2810307), (210, 1873538), (420, 936769)]