1320040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 3024360

約数和(自身を除く): 1704320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 541, 610, 1082, 1220, 2164, 2440, 2705, 4328, 5410, 10820, 21640, 33001, 66002, 132004, 165005, 264008, 330010, 660020, 1320040]

約数ペア:

[(1, 1320040), (2, 660020), (4, 330010), (5, 264008), (8, 165005), (10, 132004), (20, 66002), (40, 33001), (61, 21640), (122, 10820), (244, 5410), (305, 4328), (488, 2705), (541, 2440), (610, 2164), (1082, 1220)]