1641220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:652

約数の個数: 48

約数和(自身を含む): 4152960

約数和(自身を除く): 2511740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 617, 665, 1234, 1330, 2468, 2660, 3085, 4319, 6170, 8638, 11723, 12340, 17276, 21595, 23446, 43190, 46892, 58615, 82061, 86380, 117230, 164122, 234460, 328244, 410305, 820610, 1641220]

約数ペア:

[(1, 1641220), (2, 820610), (4, 410305), (5, 328244), (7, 234460), (10, 164122), (14, 117230), (19, 86380), (20, 82061), (28, 58615), (35, 46892), (38, 43190), (70, 23446), (76, 21595), (95, 17276), (133, 12340), (140, 11723), (190, 8638), (266, 6170), (380, 4319), (532, 3085), (617, 2660), (665, 2468), (1234, 1330)]