28122900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7211}}^1$

素因数の和:7241

約数の個数: 72

約数和(自身を含む): 87640224

約数和(自身を除く): 59517324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 7211, 14422, 21633, 28844, 36055, 43266, 72110, 86532, 93743, 108165, 144220, 180275, 187486, 216330, 281229, 360550, 374972, 432660, 468715, 540825, 562458, 721100, 937430, 1081650, 1124916, 1406145, 1874860, 2163300, 2343575, 2812290, 4687150, 5624580, 7030725, 9374300, 14061450, 28122900]

約数ペア:

[(1, 28122900), (2, 14061450), (3, 9374300), (4, 7030725), (5, 5624580), (6, 4687150), (10, 2812290), (12, 2343575), (13, 2163300), (15, 1874860), (20, 1406145), (25, 1124916), (26, 1081650), (30, 937430), (39, 721100), (50, 562458), (52, 540825), (60, 468715), (65, 432660), (75, 374972), (78, 360550), (100, 281229), (130, 216330), (150, 187486), (156, 180275), (195, 144220), (260, 108165), (300, 93743), (325, 86532), (390, 72110), (650, 43266), (780, 36055), (975, 28844), (1300, 21633), (1950, 14422), (3900, 7211)]