28026400

素因数分解:

$2^5\times 5^2\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:734

約数の個数: 72

約数和(自身を含む): 69815844

約数和(自身を除く): 41789444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 80, 100, 106, 160, 200, 212, 265, 400, 424, 530, 661, 800, 848, 1060, 1322, 1325, 1696, 2120, 2644, 2650, 3305, 4240, 5288, 5300, 6610, 8480, 10576, 10600, 13220, 16525, 21152, 21200, 26440, 33050, 35033, 42400, 52880, 66100, 70066, 105760, 132200, 140132, 175165, 264400, 280264, 350330, 528800, 560528, 700660, 875825, 1121056, 1401320, 1751650, 2802640, 3503300, 5605280, 7006600, 14013200, 28026400]

約数ペア:

[(1, 28026400), (2, 14013200), (4, 7006600), (5, 5605280), (8, 3503300), (10, 2802640), (16, 1751650), (20, 1401320), (25, 1121056), (32, 875825), (40, 700660), (50, 560528), (53, 528800), (80, 350330), (100, 280264), (106, 264400), (160, 175165), (200, 140132), (212, 132200), (265, 105760), (400, 70066), (424, 66100), (530, 52880), (661, 42400), (800, 35033), (848, 33050), (1060, 26440), (1322, 21200), (1325, 21152), (1696, 16525), (2120, 13220), (2644, 10600), (2650, 10576), (3305, 8480), (4240, 6610), (5288, 5300)]