28285650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:520

約数の個数: 72

約数和(自身を含む): 76602240

約数和(自身を除く): 48316590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 239, 263, 450, 478, 526, 717, 789, 1195, 1315, 1434, 1578, 2151, 2367, 2390, 2630, 3585, 3945, 4302, 4734, 5975, 6575, 7170, 7890, 10755, 11835, 11950, 13150, 17925, 19725, 21510, 23670, 35850, 39450, 53775, 59175, 62857, 107550, 118350, 125714, 188571, 314285, 377142, 565713, 628570, 942855, 1131426, 1571425, 1885710, 2828565, 3142850, 4714275, 5657130, 9428550, 14142825, 28285650]

約数ペア:

[(1, 28285650), (2, 14142825), (3, 9428550), (5, 5657130), (6, 4714275), (9, 3142850), (10, 2828565), (15, 1885710), (18, 1571425), (25, 1131426), (30, 942855), (45, 628570), (50, 565713), (75, 377142), (90, 314285), (150, 188571), (225, 125714), (239, 118350), (263, 107550), (450, 62857), (478, 59175), (526, 53775), (717, 39450), (789, 35850), (1195, 23670), (1315, 21510), (1434, 19725), (1578, 17925), (2151, 13150), (2367, 11950), (2390, 11835), (2630, 10755), (3585, 7890), (3945, 7170), (4302, 6575), (4734, 5975)]