2019647920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{231611}}^1$

素因数の和:231733

約数の個数: 40

約数和(自身を含む): 4738781520

約数和(自身を除く): 2719133600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 231611, 463222, 926444, 1158055, 1852888, 2316110, 3705776, 4632220, 9264440, 18528880, 25245599, 50491198, 100982396, 126227995, 201964792, 252455990, 403929584, 504911980, 1009823960, 2019647920]

約数ペア:

[(1, 2019647920), (2, 1009823960), (4, 504911980), (5, 403929584), (8, 252455990), (10, 201964792), (16, 126227995), (20, 100982396), (40, 50491198), (80, 25245599), (109, 18528880), (218, 9264440), (436, 4632220), (545, 3705776), (872, 2316110), (1090, 1852888), (1744, 1158055), (2180, 926444), (4360, 463222), (8720, 231611)]