77961000

素因数分解:

$2^3\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2036

約数の個数: 128

約数和(自身を含む): 262080000

約数和(自身を除く): 184119000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 125, 130, 150, 156, 195, 200, 250, 260, 300, 312, 325, 375, 390, 500, 520, 600, 650, 750, 780, 975, 1000, 1300, 1500, 1560, 1625, 1950, 1999, 2600, 3000, 3250, 3900, 3998, 4875, 5997, 6500, 7800, 7996, 9750, 9995, 11994, 13000, 15992, 19500, 19990, 23988, 25987, 29985, 39000, 39980, 47976, 49975, 51974, 59970, 77961, 79960, 99950, 103948, 119940, 129935, 149925, 155922, 199900, 207896, 239880, 249875, 259870, 299850, 311844, 389805, 399800, 499750, 519740, 599700, 623688, 649675, 749625, 779610, 999500, 1039480, 1199400, 1299350, 1499250, 1559220, 1949025, 1999000, 2598700, 2998500, 3118440, 3248375, 3898050, 5197400, 5997000, 6496750, 7796100, 9745125, 12993500, 15592200, 19490250, 25987000, 38980500, 77961000]

約数ペア:

[(1, 77961000), (2, 38980500), (3, 25987000), (4, 19490250), (5, 15592200), (6, 12993500), (8, 9745125), (10, 7796100), (12, 6496750), (13, 5997000), (15, 5197400), (20, 3898050), (24, 3248375), (25, 3118440), (26, 2998500), (30, 2598700), (39, 1999000), (40, 1949025), (50, 1559220), (52, 1499250), (60, 1299350), (65, 1199400), (75, 1039480), (78, 999500), (100, 779610), (104, 749625), (120, 649675), (125, 623688), (130, 599700), (150, 519740), (156, 499750), (195, 399800), (200, 389805), (250, 311844), (260, 299850), (300, 259870), (312, 249875), (325, 239880), (375, 207896), (390, 199900), (500, 155922), (520, 149925), (600, 129935), (650, 119940), (750, 103948), (780, 99950), (975, 79960), (1000, 77961), (1300, 59970), (1500, 51974), (1560, 49975), (1625, 47976), (1950, 39980), (1999, 39000), (2600, 29985), (3000, 25987), (3250, 23988), (3900, 19990), (3998, 19500), (4875, 15992), (5997, 13000), (6500, 11994), (7800, 9995), (7996, 9750)]