20174074900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{405917}}^1$

素因数の和:406009

約数の個数: 72

約数和(自身を含む): 50736502656

約数和(自身を除く): 30562427756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 140, 142, 175, 284, 350, 355, 497, 700, 710, 994, 1420, 1775, 1988, 2485, 3550, 4970, 7100, 9940, 12425, 24850, 49700, 405917, 811834, 1623668, 2029585, 2841419, 4059170, 5682838, 8118340, 10147925, 11365676, 14207095, 20295850, 28414190, 28820107, 40591700, 56828380, 57640214, 71035475, 115280428, 142070950, 144100535, 201740749, 284141900, 288201070, 403481498, 576402140, 720502675, 806962996, 1008703745, 1441005350, 2017407490, 2882010700, 4034814980, 5043518725, 10087037450, 20174074900]

約数ペア:

[(1, 20174074900), (2, 10087037450), (4, 5043518725), (5, 4034814980), (7, 2882010700), (10, 2017407490), (14, 1441005350), (20, 1008703745), (25, 806962996), (28, 720502675), (35, 576402140), (50, 403481498), (70, 288201070), (71, 284141900), (100, 201740749), (140, 144100535), (142, 142070950), (175, 115280428), (284, 71035475), (350, 57640214), (355, 56828380), (497, 40591700), (700, 28820107), (710, 28414190), (994, 20295850), (1420, 14207095), (1775, 11365676), (1988, 10147925), (2485, 8118340), (3550, 5682838), (4970, 4059170), (7100, 2841419), (9940, 2029585), (12425, 1623668), (24850, 811834), (49700, 405917)]