19484720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14327}}^1$

素因数の和:14357

約数の個数: 40

約数和(自身を含む): 47970144

約数和(自身を除く): 28485424

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14327, 28654, 57308, 71635, 114616, 143270, 229232, 243559, 286540, 487118, 573080, 974236, 1146160, 1217795, 1948472, 2435590, 3896944, 4871180, 9742360, 19484720]

約数ペア:

[(1, 19484720), (2, 9742360), (4, 4871180), (5, 3896944), (8, 2435590), (10, 1948472), (16, 1217795), (17, 1146160), (20, 974236), (34, 573080), (40, 487118), (68, 286540), (80, 243559), (85, 229232), (136, 143270), (170, 114616), (272, 71635), (340, 57308), (680, 28654), (1360, 14327)]