218519820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1321}}^1$

素因数の和:2255

約数の個数: 72

約数和(自身を含む): 664067040

約数和(自身を除く): 445547220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 919, 1321, 1838, 2642, 2757, 3676, 3963, 4595, 5284, 5514, 6605, 7926, 8271, 9190, 11028, 11889, 13210, 13785, 15852, 16542, 18380, 19815, 23778, 26420, 27570, 33084, 39630, 41355, 47556, 55140, 59445, 79260, 82710, 118890, 165420, 237780, 1213999, 2427998, 3641997, 4855996, 6069995, 7283994, 10925991, 12139990, 14567988, 18209985, 21851982, 24279980, 36419970, 43703964, 54629955, 72839940, 109259910, 218519820]

約数ペア:

[(1, 218519820), (2, 109259910), (3, 72839940), (4, 54629955), (5, 43703964), (6, 36419970), (9, 24279980), (10, 21851982), (12, 18209985), (15, 14567988), (18, 12139990), (20, 10925991), (30, 7283994), (36, 6069995), (45, 4855996), (60, 3641997), (90, 2427998), (180, 1213999), (919, 237780), (1321, 165420), (1838, 118890), (2642, 82710), (2757, 79260), (3676, 59445), (3963, 55140), (4595, 47556), (5284, 41355), (5514, 39630), (6605, 33084), (7926, 27570), (8271, 26420), (9190, 23778), (11028, 19815), (11889, 18380), (13210, 16542), (13785, 15852)]