128520540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{238001}}^1$

素因数の和:238019

約数の個数: 48

約数和(自身を含む): 399843360

約数和(自身を除く): 271322820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 238001, 476002, 714003, 952004, 1190005, 1428006, 2142009, 2380010, 2856012, 3570015, 4284018, 4760020, 6426027, 7140030, 8568036, 10710045, 12852054, 14280060, 21420090, 25704108, 32130135, 42840180, 64260270, 128520540]

約数ペア:

[(1, 128520540), (2, 64260270), (3, 42840180), (4, 32130135), (5, 25704108), (6, 21420090), (9, 14280060), (10, 12852054), (12, 10710045), (15, 8568036), (18, 7140030), (20, 6426027), (27, 4760020), (30, 4284018), (36, 3570015), (45, 2856012), (54, 2380010), (60, 2142009), (90, 1428006), (108, 1190005), (135, 952004), (180, 714003), (270, 476002), (540, 238001)]