28577500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 120

約数和(自身を含む): 75575808

約数和(自身を除く): 46998308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 71, 92, 100, 115, 125, 140, 142, 161, 175, 230, 250, 284, 322, 350, 355, 460, 497, 500, 575, 625, 644, 700, 710, 805, 875, 994, 1150, 1250, 1420, 1610, 1633, 1750, 1775, 1988, 2300, 2485, 2500, 2875, 3220, 3266, 3500, 3550, 4025, 4375, 4970, 5750, 6532, 7100, 8050, 8165, 8750, 8875, 9940, 11431, 11500, 12425, 14375, 16100, 16330, 17500, 17750, 20125, 22862, 24850, 28750, 32660, 35500, 40250, 40825, 44375, 45724, 49700, 57155, 57500, 62125, 80500, 81650, 88750, 100625, 114310, 124250, 163300, 177500, 201250, 204125, 228620, 248500, 285775, 310625, 402500, 408250, 571550, 621250, 816500, 1020625, 1143100, 1242500, 1428875, 2041250, 2857750, 4082500, 5715500, 7144375, 14288750, 28577500]

約数ペア:

[(1, 28577500), (2, 14288750), (4, 7144375), (5, 5715500), (7, 4082500), (10, 2857750), (14, 2041250), (20, 1428875), (23, 1242500), (25, 1143100), (28, 1020625), (35, 816500), (46, 621250), (50, 571550), (70, 408250), (71, 402500), (92, 310625), (100, 285775), (115, 248500), (125, 228620), (140, 204125), (142, 201250), (161, 177500), (175, 163300), (230, 124250), (250, 114310), (284, 100625), (322, 88750), (350, 81650), (355, 80500), (460, 62125), (497, 57500), (500, 57155), (575, 49700), (625, 45724), (644, 44375), (700, 40825), (710, 40250), (805, 35500), (875, 32660), (994, 28750), (1150, 24850), (1250, 22862), (1420, 20125), (1610, 17750), (1633, 17500), (1750, 16330), (1775, 16100), (1988, 14375), (2300, 12425), (2485, 11500), (2500, 11431), (2875, 9940), (3220, 8875), (3266, 8750), (3500, 8165), (3550, 8050), (4025, 7100), (4375, 6532), (4970, 5750)]