15794660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 39299904

約数和(自身を除く): 23505244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 227, 245, 284, 355, 454, 490, 497, 710, 908, 980, 994, 1135, 1420, 1589, 1988, 2270, 2485, 3178, 3479, 4540, 4970, 6356, 6958, 7945, 9940, 11123, 13916, 15890, 16117, 17395, 22246, 31780, 32234, 34790, 44492, 55615, 64468, 69580, 80585, 111230, 112819, 161170, 222460, 225638, 322340, 451276, 564095, 789733, 1128190, 1579466, 2256380, 3158932, 3948665, 7897330, 15794660]

約数ペア:

[(1, 15794660), (2, 7897330), (4, 3948665), (5, 3158932), (7, 2256380), (10, 1579466), (14, 1128190), (20, 789733), (28, 564095), (35, 451276), (49, 322340), (70, 225638), (71, 222460), (98, 161170), (140, 112819), (142, 111230), (196, 80585), (227, 69580), (245, 64468), (284, 55615), (355, 44492), (454, 34790), (490, 32234), (497, 31780), (710, 22246), (908, 17395), (980, 16117), (994, 15890), (1135, 13916), (1420, 11123), (1589, 9940), (1988, 7945), (2270, 6958), (2485, 6356), (3178, 4970), (3479, 4540)]