68875000

素因数分解:

$2^3\times 5^6\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:84

約数の個数: 112

約数和(自身を含む): 175779000

約数和(自身を除く): 106904000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 29, 38, 40, 50, 58, 76, 95, 100, 116, 125, 145, 152, 190, 200, 232, 250, 290, 380, 475, 500, 551, 580, 625, 725, 760, 950, 1000, 1102, 1160, 1250, 1450, 1900, 2204, 2375, 2500, 2755, 2900, 3125, 3625, 3800, 4408, 4750, 5000, 5510, 5800, 6250, 7250, 9500, 11020, 11875, 12500, 13775, 14500, 15625, 18125, 19000, 22040, 23750, 25000, 27550, 29000, 31250, 36250, 47500, 55100, 59375, 62500, 68875, 72500, 90625, 95000, 110200, 118750, 125000, 137750, 145000, 181250, 237500, 275500, 296875, 344375, 362500, 453125, 475000, 551000, 593750, 688750, 725000, 906250, 1187500, 1377500, 1721875, 1812500, 2375000, 2755000, 3443750, 3625000, 6887500, 8609375, 13775000, 17218750, 34437500, 68875000]

約数ペア:

[(1, 68875000), (2, 34437500), (4, 17218750), (5, 13775000), (8, 8609375), (10, 6887500), (19, 3625000), (20, 3443750), (25, 2755000), (29, 2375000), (38, 1812500), (40, 1721875), (50, 1377500), (58, 1187500), (76, 906250), (95, 725000), (100, 688750), (116, 593750), (125, 551000), (145, 475000), (152, 453125), (190, 362500), (200, 344375), (232, 296875), (250, 275500), (290, 237500), (380, 181250), (475, 145000), (500, 137750), (551, 125000), (580, 118750), (625, 110200), (725, 95000), (760, 90625), (950, 72500), (1000, 68875), (1102, 62500), (1160, 59375), (1250, 55100), (1450, 47500), (1900, 36250), (2204, 31250), (2375, 29000), (2500, 27550), (2755, 25000), (2900, 23750), (3125, 22040), (3625, 19000), (3800, 18125), (4408, 15625), (4750, 14500), (5000, 13775), (5510, 12500), (5800, 11875), (6250, 11020), (7250, 9500)]