158399680

素因数分解:

$2^6\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1787}}^1$

素因数の和:2081

約数の個数: 56

約数和(自身を含む): 378762768

約数和(自身を除く): 220363088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 277, 320, 554, 1108, 1385, 1787, 2216, 2770, 3574, 4432, 5540, 7148, 8864, 8935, 11080, 14296, 17728, 17870, 22160, 28592, 35740, 44320, 57184, 71480, 88640, 114368, 142960, 285920, 494999, 571840, 989998, 1979996, 2474995, 3959992, 4949990, 7919984, 9899980, 15839968, 19799960, 31679936, 39599920, 79199840, 158399680]

約数ペア:

[(1, 158399680), (2, 79199840), (4, 39599920), (5, 31679936), (8, 19799960), (10, 15839968), (16, 9899980), (20, 7919984), (32, 4949990), (40, 3959992), (64, 2474995), (80, 1979996), (160, 989998), (277, 571840), (320, 494999), (554, 285920), (1108, 142960), (1385, 114368), (1787, 88640), (2216, 71480), (2770, 57184), (3574, 44320), (4432, 35740), (5540, 28592), (7148, 22160), (8864, 17870), (8935, 17728), (11080, 14296)]