219410240

素因数分解:

$2^6\times 5^1\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2037

約数の個数: 112

約数和(自身を含む): 609600000

約数和(自身を除く): 390189760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 343, 392, 448, 490, 560, 686, 784, 980, 1120, 1372, 1568, 1715, 1960, 1999, 2240, 2744, 3136, 3430, 3920, 3998, 5488, 6860, 7840, 7996, 9995, 10976, 13720, 13993, 15680, 15992, 19990, 21952, 27440, 27986, 31984, 39980, 54880, 55972, 63968, 69965, 79960, 97951, 109760, 111944, 127936, 139930, 159920, 195902, 223888, 279860, 319840, 391804, 447776, 489755, 559720, 639680, 685657, 783608, 895552, 979510, 1119440, 1371314, 1567216, 1959020, 2238880, 2742628, 3134432, 3428285, 3918040, 4477760, 5485256, 6268864, 6856570, 7836080, 10970512, 13713140, 15672160, 21941024, 27426280, 31344320, 43882048, 54852560, 109705120, 219410240]

約数ペア:

[(1, 219410240), (2, 109705120), (4, 54852560), (5, 43882048), (7, 31344320), (8, 27426280), (10, 21941024), (14, 15672160), (16, 13713140), (20, 10970512), (28, 7836080), (32, 6856570), (35, 6268864), (40, 5485256), (49, 4477760), (56, 3918040), (64, 3428285), (70, 3134432), (80, 2742628), (98, 2238880), (112, 1959020), (140, 1567216), (160, 1371314), (196, 1119440), (224, 979510), (245, 895552), (280, 783608), (320, 685657), (343, 639680), (392, 559720), (448, 489755), (490, 447776), (560, 391804), (686, 319840), (784, 279860), (980, 223888), (1120, 195902), (1372, 159920), (1568, 139930), (1715, 127936), (1960, 111944), (1999, 109760), (2240, 97951), (2744, 79960), (3136, 69965), (3430, 63968), (3920, 55972), (3998, 54880), (5488, 39980), (6860, 31984), (7840, 27986), (7996, 27440), (9995, 21952), (10976, 19990), (13720, 15992), (13993, 15680)]