1913885440

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:538

約数の個数: 144

約数和(自身を含む): 4780016640

約数和(自身を除く): 2866131200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 139, 155, 160, 248, 256, 278, 310, 320, 347, 496, 556, 620, 640, 694, 695, 992, 1112, 1240, 1280, 1388, 1390, 1735, 1984, 2224, 2480, 2776, 2780, 3470, 3968, 4309, 4448, 4960, 5552, 5560, 6940, 7936, 8618, 8896, 9920, 10757, 11104, 11120, 13880, 17236, 17792, 19840, 21514, 21545, 22208, 22240, 27760, 34472, 35584, 39680, 43028, 43090, 44416, 44480, 48233, 53785, 55520, 68944, 86056, 86180, 88832, 88960, 96466, 107570, 111040, 137888, 172112, 172360, 177920, 192932, 215140, 222080, 241165, 275776, 344224, 344720, 385864, 430280, 444160, 482330, 551552, 688448, 689440, 771728, 860560, 964660, 1103104, 1376896, 1378880, 1495223, 1543456, 1721120, 1929320, 2753792, 2757760, 2990446, 3086912, 3442240, 3858640, 5515520, 5980892, 6173824, 6884480, 7476115, 7717280, 11961784, 12347648, 13768960, 14952230, 15434560, 23923568, 29904460, 30869120, 47847136, 59808920, 61738240, 95694272, 119617840, 191388544, 239235680, 382777088, 478471360, 956942720, 1913885440]

約数ペア:

[(1, 1913885440), (2, 956942720), (4, 478471360), (5, 382777088), (8, 239235680), (10, 191388544), (16, 119617840), (20, 95694272), (31, 61738240), (32, 59808920), (40, 47847136), (62, 30869120), (64, 29904460), (80, 23923568), (124, 15434560), (128, 14952230), (139, 13768960), (155, 12347648), (160, 11961784), (248, 7717280), (256, 7476115), (278, 6884480), (310, 6173824), (320, 5980892), (347, 5515520), (496, 3858640), (556, 3442240), (620, 3086912), (640, 2990446), (694, 2757760), (695, 2753792), (992, 1929320), (1112, 1721120), (1240, 1543456), (1280, 1495223), (1388, 1378880), (1390, 1376896), (1735, 1103104), (1984, 964660), (2224, 860560), (2480, 771728), (2776, 689440), (2780, 688448), (3470, 551552), (3968, 482330), (4309, 444160), (4448, 430280), (4960, 385864), (5552, 344720), (5560, 344224), (6940, 275776), (7936, 241165), (8618, 222080), (8896, 215140), (9920, 192932), (10757, 177920), (11104, 172360), (11120, 172112), (13880, 137888), (17236, 111040), (17792, 107570), (19840, 96466), (21514, 88960), (21545, 88832), (22208, 86180), (22240, 86056), (27760, 68944), (34472, 55520), (35584, 53785), (39680, 48233), (43028, 44480), (43090, 44416)]