31391220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2411}}^1$

素因数の和:2461

約数の個数: 96

約数和(自身を含む): 103735296

約数和(自身を除く): 72344076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 210, 217, 310, 372, 420, 434, 465, 620, 651, 868, 930, 1085, 1302, 1860, 2170, 2411, 2604, 3255, 4340, 4822, 6510, 7233, 9644, 12055, 13020, 14466, 16877, 24110, 28932, 33754, 36165, 48220, 50631, 67508, 72330, 74741, 84385, 101262, 144660, 149482, 168770, 202524, 224223, 253155, 298964, 337540, 373705, 448446, 506310, 523187, 747410, 896892, 1012620, 1046374, 1121115, 1494820, 1569561, 2092748, 2242230, 2615935, 3139122, 4484460, 5231870, 6278244, 7847805, 10463740, 15695610, 31391220]

約数ペア:

[(1, 31391220), (2, 15695610), (3, 10463740), (4, 7847805), (5, 6278244), (6, 5231870), (7, 4484460), (10, 3139122), (12, 2615935), (14, 2242230), (15, 2092748), (20, 1569561), (21, 1494820), (28, 1121115), (30, 1046374), (31, 1012620), (35, 896892), (42, 747410), (60, 523187), (62, 506310), (70, 448446), (84, 373705), (93, 337540), (105, 298964), (124, 253155), (140, 224223), (155, 202524), (186, 168770), (210, 149482), (217, 144660), (310, 101262), (372, 84385), (420, 74741), (434, 72330), (465, 67508), (620, 50631), (651, 48220), (868, 36165), (930, 33754), (1085, 28932), (1302, 24110), (1860, 16877), (2170, 14466), (2411, 13020), (2604, 12055), (3255, 9644), (4340, 7233), (4822, 6510)]