28086310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:138

約数の個数: 72

約数和(自身を含む): 62150976

約数和(自身を除く): 34064666

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 43, 49, 62, 70, 86, 98, 155, 215, 217, 245, 301, 310, 430, 434, 490, 602, 1085, 1333, 1505, 1519, 1849, 2107, 2170, 2666, 3010, 3038, 3698, 4214, 6665, 7595, 9245, 9331, 10535, 12943, 13330, 15190, 18490, 18662, 21070, 25886, 46655, 57319, 64715, 65317, 90601, 93310, 114638, 129430, 130634, 181202, 286595, 326585, 401233, 453005, 573190, 653170, 802466, 906010, 2006165, 2808631, 4012330, 5617262, 14043155, 28086310]

約数ペア:

[(1, 28086310), (2, 14043155), (5, 5617262), (7, 4012330), (10, 2808631), (14, 2006165), (31, 906010), (35, 802466), (43, 653170), (49, 573190), (62, 453005), (70, 401233), (86, 326585), (98, 286595), (155, 181202), (215, 130634), (217, 129430), (245, 114638), (301, 93310), (310, 90601), (430, 65317), (434, 64715), (490, 57319), (602, 46655), (1085, 25886), (1333, 21070), (1505, 18662), (1519, 18490), (1849, 15190), (2107, 13330), (2170, 12943), (2666, 10535), (3010, 9331), (3038, 9245), (3698, 7595), (4214, 6665)]