231381780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{550909}}^1$

素因数の和:550928

約数の個数: 48

約数和(自身を含む): 740423040

約数和(自身を除く): 509041260

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, 550909, 1101818, 1652727, 2203636, 2754545, 3305454, 3856363, 5509090, 6610908, 7712726, 8263635, 11018180, 11569089, 15425452, 16527270, 19281815, 23138178, 33054540, 38563630, 46276356, 57845445, 77127260, 115690890, 231381780]

約数ペア:

[(1, 231381780), (2, 115690890), (3, 77127260), (4, 57845445), (5, 46276356), (6, 38563630), (7, 33054540), (10, 23138178), (12, 19281815), (14, 16527270), (15, 15425452), (20, 11569089), (21, 11018180), (28, 8263635), (30, 7712726), (35, 6610908), (42, 5509090), (60, 3856363), (70, 3305454), (84, 2754545), (105, 2203636), (140, 1652727), (210, 1101818), (420, 550909)]