28787000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{2617}}^1$

素因数の和:2649

約数の個数: 64

約数和(自身を含む): 73513440

約数和(自身を除く): 44726440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 125, 200, 220, 250, 275, 440, 500, 550, 1000, 1100, 1375, 2200, 2617, 2750, 5234, 5500, 10468, 11000, 13085, 20936, 26170, 28787, 52340, 57574, 65425, 104680, 115148, 130850, 143935, 230296, 261700, 287870, 327125, 523400, 575740, 654250, 719675, 1151480, 1308500, 1439350, 2617000, 2878700, 3598375, 5757400, 7196750, 14393500, 28787000]

約数ペア:

[(1, 28787000), (2, 14393500), (4, 7196750), (5, 5757400), (8, 3598375), (10, 2878700), (11, 2617000), (20, 1439350), (22, 1308500), (25, 1151480), (40, 719675), (44, 654250), (50, 575740), (55, 523400), (88, 327125), (100, 287870), (110, 261700), (125, 230296), (200, 143935), (220, 130850), (250, 115148), (275, 104680), (440, 65425), (500, 57574), (550, 52340), (1000, 28787), (1100, 26170), (1375, 20936), (2200, 13085), (2617, 11000), (2750, 10468), (5234, 5500)]