209748420

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{7927}}^1$

素因数の和:7959

約数の個数: 144

約数和(自身を含む): 759185280

約数和(自身を除く): 549436860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3780, 4410, 5292, 6615, 7927, 8820, 13230, 15854, 23781, 26460, 31708, 39635, 47562, 55489, 71343, 79270, 95124, 110978, 118905, 142686, 158540, 166467, 214029, 221956, 237810, 277445, 285372, 332934, 356715, 388423, 428058, 475620, 499401, 554890, 665868, 713430, 776846, 832335, 856116, 998802, 1070145, 1109780, 1165269, 1426860, 1498203, 1553692, 1664670, 1942115, 1997604, 2140290, 2330538, 2497005, 2996406, 3329340, 3495807, 3884230, 4280580, 4661076, 4994010, 5826345, 5992812, 6991614, 7491015, 7768460, 9988020, 10487421, 11652690, 13983228, 14982030, 17479035, 20974842, 23305380, 29964060, 34958070, 41949684, 52437105, 69916140, 104874210, 209748420]

約数ペア:

[(1, 209748420), (2, 104874210), (3, 69916140), (4, 52437105), (5, 41949684), (6, 34958070), (7, 29964060), (9, 23305380), (10, 20974842), (12, 17479035), (14, 14982030), (15, 13983228), (18, 11652690), (20, 10487421), (21, 9988020), (27, 7768460), (28, 7491015), (30, 6991614), (35, 5992812), (36, 5826345), (42, 4994010), (45, 4661076), (49, 4280580), (54, 3884230), (60, 3495807), (63, 3329340), (70, 2996406), (84, 2497005), (90, 2330538), (98, 2140290), (105, 1997604), (108, 1942115), (126, 1664670), (135, 1553692), (140, 1498203), (147, 1426860), (180, 1165269), (189, 1109780), (196, 1070145), (210, 998802), (245, 856116), (252, 832335), (270, 776846), (294, 713430), (315, 665868), (378, 554890), (420, 499401), (441, 475620), (490, 428058), (540, 388423), (588, 356715), (630, 332934), (735, 285372), (756, 277445), (882, 237810), (945, 221956), (980, 214029), (1260, 166467), (1323, 158540), (1470, 142686), (1764, 118905), (1890, 110978), (2205, 95124), (2646, 79270), (2940, 71343), (3780, 55489), (4410, 47562), (5292, 39635), (6615, 31708), (7927, 26460), (8820, 23781), (13230, 15854)]