28591780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{617}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 68939136

約数和(自身を除く): 40347356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 331, 617, 662, 1234, 1324, 1655, 2317, 2468, 3085, 3310, 4319, 4634, 6170, 6620, 8638, 9268, 11585, 12340, 17276, 21595, 23170, 43190, 46340, 86380, 204227, 408454, 816908, 1021135, 1429589, 2042270, 2859178, 4084540, 5718356, 7147945, 14295890, 28591780]

約数ペア:

[(1, 28591780), (2, 14295890), (4, 7147945), (5, 5718356), (7, 4084540), (10, 2859178), (14, 2042270), (20, 1429589), (28, 1021135), (35, 816908), (70, 408454), (140, 204227), (331, 86380), (617, 46340), (662, 43190), (1234, 23170), (1324, 21595), (1655, 17276), (2317, 12340), (2468, 11585), (3085, 9268), (3310, 8638), (4319, 6620), (4634, 6170)]