9781380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{1109}}^1$

素因数の和:1138

約数の個数: 108

約数和(自身を含む): 34545420

約数和(自身を除く): 24764040

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1109, 1260, 1470, 1764, 2205, 2218, 2940, 3327, 4410, 4436, 5545, 6654, 7763, 8820, 9981, 11090, 13308, 15526, 16635, 19962, 22180, 23289, 31052, 33270, 38815, 39924, 46578, 49905, 54341, 66540, 69867, 77630, 93156, 99810, 108682, 116445, 139734, 155260, 163023, 199620, 217364, 232890, 271705, 279468, 326046, 349335, 465780, 489069, 543410, 652092, 698670, 815115, 978138, 1086820, 1397340, 1630230, 1956276, 2445345, 3260460, 4890690, 9781380]

約数ペア:

[(1, 9781380), (2, 4890690), (3, 3260460), (4, 2445345), (5, 1956276), (6, 1630230), (7, 1397340), (9, 1086820), (10, 978138), (12, 815115), (14, 698670), (15, 652092), (18, 543410), (20, 489069), (21, 465780), (28, 349335), (30, 326046), (35, 279468), (36, 271705), (42, 232890), (45, 217364), (49, 199620), (60, 163023), (63, 155260), (70, 139734), (84, 116445), (90, 108682), (98, 99810), (105, 93156), (126, 77630), (140, 69867), (147, 66540), (180, 54341), (196, 49905), (210, 46578), (245, 39924), (252, 38815), (294, 33270), (315, 31052), (420, 23289), (441, 22180), (490, 19962), (588, 16635), (630, 15526), (735, 13308), (882, 11090), (980, 9981), (1109, 8820), (1260, 7763), (1470, 6654), (1764, 5545), (2205, 4436), (2218, 4410), (2940, 3327)]