16987460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1796

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 24380860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1709, 1988, 2485, 3418, 4970, 6836, 8545, 9940, 11963, 17090, 23926, 34180, 47852, 59815, 119630, 121339, 239260, 242678, 485356, 606695, 849373, 1213390, 1698746, 2426780, 3397492, 4246865, 8493730, 16987460]

約数ペア:

[(1, 16987460), (2, 8493730), (4, 4246865), (5, 3397492), (7, 2426780), (10, 1698746), (14, 1213390), (20, 849373), (28, 606695), (35, 485356), (70, 242678), (71, 239260), (140, 121339), (142, 119630), (284, 59815), (355, 47852), (497, 34180), (710, 23926), (994, 17090), (1420, 11963), (1709, 9940), (1988, 8545), (2485, 6836), (3418, 4970)]