31999345

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 13343375

約数列:

[1, 5, 7, 35, 71, 79, 163, 355, 395, 497, 553, 815, 1141, 2485, 2765, 5609, 5705, 11573, 12877, 28045, 39263, 57865, 64385, 81011, 90139, 196315, 405055, 450695, 914267, 4571335, 6399869, 31999345]

約数ペア:

[(1, 31999345), (5, 6399869), (7, 4571335), (35, 914267), (71, 450695), (79, 405055), (163, 196315), (355, 90139), (395, 81011), (497, 64385), (553, 57865), (815, 39263), (1141, 28045), (2485, 12877), (2765, 11573), (5609, 5705)]