439760

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:275

約数の個数: 40

約数和(自身を含む): 1071360

約数和(自身を除く): 631600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 239, 368, 460, 478, 920, 956, 1195, 1840, 1912, 2390, 3824, 4780, 5497, 9560, 10994, 19120, 21988, 27485, 43976, 54970, 87952, 109940, 219880, 439760]

約数ペア:

[(1, 439760), (2, 219880), (4, 109940), (5, 87952), (8, 54970), (10, 43976), (16, 27485), (20, 21988), (23, 19120), (40, 10994), (46, 9560), (80, 5497), (92, 4780), (115, 3824), (184, 2390), (230, 1912), (239, 1840), (368, 1195), (460, 956), (478, 920)]