289103480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101797}}^1$

素因数の和:101879

約数の個数: 32

約数和(自身を含む): 659651040

約数和(自身を除く): 370547560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 101797, 203594, 407188, 508985, 814376, 1017970, 2035940, 4071880, 7227587, 14455174, 28910348, 36137935, 57820696, 72275870, 144551740, 289103480]

約数ペア:

[(1, 289103480), (2, 144551740), (4, 72275870), (5, 57820696), (8, 36137935), (10, 28910348), (20, 14455174), (40, 7227587), (71, 4071880), (142, 2035940), (284, 1017970), (355, 814376), (568, 508985), (710, 407188), (1420, 203594), (2840, 101797)]