28265900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1279}}^1$

素因数の和:1323

約数の個数: 72

約数和(自身を含む): 69995520

約数和(自身を除く): 41729620

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 650, 850, 884, 1105, 1279, 1300, 1700, 2210, 2558, 4420, 5116, 5525, 6395, 11050, 12790, 16627, 21743, 22100, 25580, 31975, 33254, 43486, 63950, 66508, 83135, 86972, 108715, 127900, 166270, 217430, 282659, 332540, 415675, 434860, 543575, 565318, 831350, 1087150, 1130636, 1413295, 1662700, 2174300, 2826590, 5653180, 7066475, 14132950, 28265900]

約数ペア:

[(1, 28265900), (2, 14132950), (4, 7066475), (5, 5653180), (10, 2826590), (13, 2174300), (17, 1662700), (20, 1413295), (25, 1130636), (26, 1087150), (34, 831350), (50, 565318), (52, 543575), (65, 434860), (68, 415675), (85, 332540), (100, 282659), (130, 217430), (170, 166270), (221, 127900), (260, 108715), (325, 86972), (340, 83135), (425, 66508), (442, 63950), (650, 43486), (850, 33254), (884, 31975), (1105, 25580), (1279, 22100), (1300, 21743), (1700, 16627), (2210, 12790), (2558, 11050), (4420, 6395), (5116, 5525)]