28456260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9679}}^1$

素因数の和:9705

約数の個数: 72

約数和(自身を含む): 92695680

約数和(自身を除く): 64239420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9679, 19358, 29037, 38716, 48395, 58074, 67753, 96790, 116148, 135506, 145185, 193580, 203259, 271012, 290370, 338765, 406518, 474271, 580740, 677530, 813036, 948542, 1016295, 1355060, 1422813, 1897084, 2032590, 2371355, 2845626, 4065180, 4742710, 5691252, 7114065, 9485420, 14228130, 28456260]

約数ペア:

[(1, 28456260), (2, 14228130), (3, 9485420), (4, 7114065), (5, 5691252), (6, 4742710), (7, 4065180), (10, 2845626), (12, 2371355), (14, 2032590), (15, 1897084), (20, 1422813), (21, 1355060), (28, 1016295), (30, 948542), (35, 813036), (42, 677530), (49, 580740), (60, 474271), (70, 406518), (84, 338765), (98, 290370), (105, 271012), (140, 203259), (147, 193580), (196, 145185), (210, 135506), (245, 116148), (294, 96790), (420, 67753), (490, 58074), (588, 48395), (735, 38716), (980, 29037), (1470, 19358), (2940, 9679)]