25314380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2023

約数の個数: 72

約数和(自身を含む): 66629808

約数和(自身を除く): 41315428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 1987, 2548, 3185, 3974, 6370, 7948, 9935, 12740, 13909, 19870, 25831, 27818, 39740, 51662, 55636, 69545, 97363, 103324, 129155, 139090, 180817, 194726, 258310, 278180, 361634, 389452, 486815, 516620, 723268, 904085, 973630, 1265719, 1808170, 1947260, 2531438, 3616340, 5062876, 6328595, 12657190, 25314380]

約数ペア:

[(1, 25314380), (2, 12657190), (4, 6328595), (5, 5062876), (7, 3616340), (10, 2531438), (13, 1947260), (14, 1808170), (20, 1265719), (26, 973630), (28, 904085), (35, 723268), (49, 516620), (52, 486815), (65, 389452), (70, 361634), (91, 278180), (98, 258310), (130, 194726), (140, 180817), (182, 139090), (196, 129155), (245, 103324), (260, 97363), (364, 69545), (455, 55636), (490, 51662), (637, 39740), (910, 27818), (980, 25831), (1274, 19870), (1820, 13909), (1987, 12740), (2548, 9935), (3185, 7948), (3974, 6370)]