19790100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2030

約数の個数: 108

約数和(自身を含む): 67704000

約数和(自身を除く): 47913900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 33, 36, 44, 45, 50, 55, 60, 66, 75, 90, 99, 100, 110, 132, 150, 165, 180, 198, 220, 225, 275, 300, 330, 396, 450, 495, 550, 660, 825, 900, 990, 1100, 1650, 1980, 1999, 2475, 3300, 3998, 4950, 5997, 7996, 9900, 9995, 11994, 17991, 19990, 21989, 23988, 29985, 35982, 39980, 43978, 49975, 59970, 65967, 71964, 87956, 89955, 99950, 109945, 119940, 131934, 149925, 179910, 197901, 199900, 219890, 263868, 299850, 329835, 359820, 395802, 439780, 449775, 549725, 599700, 659670, 791604, 899550, 989505, 1099450, 1319340, 1649175, 1799100, 1979010, 2198900, 3298350, 3958020, 4947525, 6596700, 9895050, 19790100]

約数ペア:

[(1, 19790100), (2, 9895050), (3, 6596700), (4, 4947525), (5, 3958020), (6, 3298350), (9, 2198900), (10, 1979010), (11, 1799100), (12, 1649175), (15, 1319340), (18, 1099450), (20, 989505), (22, 899550), (25, 791604), (30, 659670), (33, 599700), (36, 549725), (44, 449775), (45, 439780), (50, 395802), (55, 359820), (60, 329835), (66, 299850), (75, 263868), (90, 219890), (99, 199900), (100, 197901), (110, 179910), (132, 149925), (150, 131934), (165, 119940), (180, 109945), (198, 99950), (220, 89955), (225, 87956), (275, 71964), (300, 65967), (330, 59970), (396, 49975), (450, 43978), (495, 39980), (550, 35982), (660, 29985), (825, 23988), (900, 21989), (990, 19990), (1100, 17991), (1650, 11994), (1980, 9995), (1999, 9900), (2475, 7996), (3300, 5997), (3998, 4950)]