128415760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1999}}^1$

素因数の和:2096

約数の個数: 80

約数和(自身を含む): 330336000

約数和(自身を除く): 201920240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1168, 1460, 1606, 1999, 2920, 3212, 3998, 4015, 5840, 6424, 7996, 8030, 9995, 12848, 15992, 16060, 19990, 21989, 31984, 32120, 39980, 43978, 64240, 79960, 87956, 109945, 145927, 159920, 175912, 219890, 291854, 351824, 439780, 583708, 729635, 879560, 1167416, 1459270, 1605197, 1759120, 2334832, 2918540, 3210394, 5837080, 6420788, 8025985, 11674160, 12841576, 16051970, 25683152, 32103940, 64207880, 128415760]

約数ペア:

[(1, 128415760), (2, 64207880), (4, 32103940), (5, 25683152), (8, 16051970), (10, 12841576), (11, 11674160), (16, 8025985), (20, 6420788), (22, 5837080), (40, 3210394), (44, 2918540), (55, 2334832), (73, 1759120), (80, 1605197), (88, 1459270), (110, 1167416), (146, 879560), (176, 729635), (220, 583708), (292, 439780), (365, 351824), (440, 291854), (584, 219890), (730, 175912), (803, 159920), (880, 145927), (1168, 109945), (1460, 87956), (1606, 79960), (1999, 64240), (2920, 43978), (3212, 39980), (3998, 32120), (4015, 31984), (5840, 21989), (6424, 19990), (7996, 16060), (8030, 15992), (9995, 12848)]