38700640

素因数分解:

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

素因数の和:2036

約数の個数: 72

約数和(自身を含む): 100548000

約数和(自身を除く): 61847360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 1999, 2420, 3872, 3998, 4840, 7996, 9680, 9995, 15992, 19360, 19990, 21989, 31984, 39980, 43978, 63968, 79960, 87956, 109945, 159920, 175912, 219890, 241879, 319840, 351824, 439780, 483758, 703648, 879560, 967516, 1209395, 1759120, 1935032, 2418790, 3518240, 3870064, 4837580, 7740128, 9675160, 19350320, 38700640]

約数ペア:

[(1, 38700640), (2, 19350320), (4, 9675160), (5, 7740128), (8, 4837580), (10, 3870064), (11, 3518240), (16, 2418790), (20, 1935032), (22, 1759120), (32, 1209395), (40, 967516), (44, 879560), (55, 703648), (80, 483758), (88, 439780), (110, 351824), (121, 319840), (160, 241879), (176, 219890), (220, 175912), (242, 159920), (352, 109945), (440, 87956), (484, 79960), (605, 63968), (880, 43978), (968, 39980), (1210, 31984), (1760, 21989), (1936, 19990), (1999, 19360), (2420, 15992), (3872, 9995), (3998, 9680), (4840, 7996)]