208210880

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:338

約数の個数: 112

約数和(自身を含む): 518891520

約数和(自身を除く): 310680640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 139, 151, 155, 160, 248, 278, 302, 310, 320, 496, 556, 604, 620, 695, 755, 992, 1112, 1208, 1240, 1390, 1510, 1984, 2224, 2416, 2480, 2780, 3020, 4309, 4448, 4681, 4832, 4960, 5560, 6040, 8618, 8896, 9362, 9664, 9920, 11120, 12080, 17236, 18724, 20989, 21545, 22240, 23405, 24160, 34472, 37448, 41978, 43090, 44480, 46810, 48320, 68944, 74896, 83956, 86180, 93620, 104945, 137888, 149792, 167912, 172360, 187240, 209890, 275776, 299584, 335824, 344720, 374480, 419780, 650659, 671648, 689440, 748960, 839560, 1301318, 1343296, 1378880, 1497920, 1679120, 2602636, 3253295, 3358240, 5205272, 6506590, 6716480, 10410544, 13013180, 20821088, 26026360, 41642176, 52052720, 104105440, 208210880]

約数ペア:

[(1, 208210880), (2, 104105440), (4, 52052720), (5, 41642176), (8, 26026360), (10, 20821088), (16, 13013180), (20, 10410544), (31, 6716480), (32, 6506590), (40, 5205272), (62, 3358240), (64, 3253295), (80, 2602636), (124, 1679120), (139, 1497920), (151, 1378880), (155, 1343296), (160, 1301318), (248, 839560), (278, 748960), (302, 689440), (310, 671648), (320, 650659), (496, 419780), (556, 374480), (604, 344720), (620, 335824), (695, 299584), (755, 275776), (992, 209890), (1112, 187240), (1208, 172360), (1240, 167912), (1390, 149792), (1510, 137888), (1984, 104945), (2224, 93620), (2416, 86180), (2480, 83956), (2780, 74896), (3020, 68944), (4309, 48320), (4448, 46810), (4681, 44480), (4832, 43090), (4960, 41978), (5560, 37448), (6040, 34472), (8618, 24160), (8896, 23405), (9362, 22240), (9664, 21545), (9920, 20989), (11120, 18724), (12080, 17236)]