25438000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 160

約数和(自身を含む): 74280960

約数和(自身を除く): 48842960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 79, 80, 92, 100, 112, 115, 125, 140, 158, 161, 175, 184, 200, 230, 250, 280, 316, 322, 350, 368, 395, 400, 460, 500, 553, 560, 575, 632, 644, 700, 790, 805, 875, 920, 1000, 1106, 1150, 1264, 1288, 1400, 1580, 1610, 1750, 1817, 1840, 1975, 2000, 2212, 2300, 2576, 2765, 2800, 2875, 3160, 3220, 3500, 3634, 3950, 4025, 4424, 4600, 5530, 5750, 6320, 6440, 7000, 7268, 7900, 8050, 8848, 9085, 9200, 9875, 11060, 11500, 12719, 12880, 13825, 14000, 14536, 15800, 16100, 18170, 19750, 20125, 22120, 23000, 25438, 27650, 29072, 31600, 32200, 36340, 39500, 40250, 44240, 45425, 46000, 50876, 55300, 63595, 64400, 69125, 72680, 79000, 80500, 90850, 101752, 110600, 127190, 138250, 145360, 158000, 161000, 181700, 203504, 221200, 227125, 254380, 276500, 317975, 322000, 363400, 454250, 508760, 553000, 635950, 726800, 908500, 1017520, 1106000, 1271900, 1589875, 1817000, 2543800, 3179750, 3634000, 5087600, 6359500, 12719000, 25438000]

約数ペア:

[(1, 25438000), (2, 12719000), (4, 6359500), (5, 5087600), (7, 3634000), (8, 3179750), (10, 2543800), (14, 1817000), (16, 1589875), (20, 1271900), (23, 1106000), (25, 1017520), (28, 908500), (35, 726800), (40, 635950), (46, 553000), (50, 508760), (56, 454250), (70, 363400), (79, 322000), (80, 317975), (92, 276500), (100, 254380), (112, 227125), (115, 221200), (125, 203504), (140, 181700), (158, 161000), (161, 158000), (175, 145360), (184, 138250), (200, 127190), (230, 110600), (250, 101752), (280, 90850), (316, 80500), (322, 79000), (350, 72680), (368, 69125), (395, 64400), (400, 63595), (460, 55300), (500, 50876), (553, 46000), (560, 45425), (575, 44240), (632, 40250), (644, 39500), (700, 36340), (790, 32200), (805, 31600), (875, 29072), (920, 27650), (1000, 25438), (1106, 23000), (1150, 22120), (1264, 20125), (1288, 19750), (1400, 18170), (1580, 16100), (1610, 15800), (1750, 14536), (1817, 14000), (1840, 13825), (1975, 12880), (2000, 12719), (2212, 11500), (2300, 11060), (2576, 9875), (2765, 9200), (2800, 9085), (2875, 8848), (3160, 8050), (3220, 7900), (3500, 7268), (3634, 7000), (3950, 6440), (4025, 6320), (4424, 5750), (4600, 5530)]