28467440

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{683}}^1$

素因数の和:1217

約数の個数: 40

約数和(自身を含む): 66410928

約数和(自身を除く): 37943488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 683, 1042, 1366, 2084, 2605, 2732, 3415, 4168, 5210, 5464, 6830, 8336, 10420, 10928, 13660, 20840, 27320, 41680, 54640, 355843, 711686, 1423372, 1779215, 2846744, 3558430, 5693488, 7116860, 14233720, 28467440]

約数ペア:

[(1, 28467440), (2, 14233720), (4, 7116860), (5, 5693488), (8, 3558430), (10, 2846744), (16, 1779215), (20, 1423372), (40, 711686), (80, 355843), (521, 54640), (683, 41680), (1042, 27320), (1366, 20840), (2084, 13660), (2605, 10928), (2732, 10420), (3415, 8336), (4168, 6830), (5210, 5464)]