28836680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1997}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 68511420

約数和(自身を除く): 39674740

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 1997, 2888, 3610, 3994, 7220, 7988, 9985, 14440, 15976, 19970, 37943, 39940, 75886, 79880, 151772, 189715, 303544, 379430, 720917, 758860, 1441834, 1517720, 2883668, 3604585, 5767336, 7209170, 14418340, 28836680]

約数ペア:

[(1, 28836680), (2, 14418340), (4, 7209170), (5, 5767336), (8, 3604585), (10, 2883668), (19, 1517720), (20, 1441834), (38, 758860), (40, 720917), (76, 379430), (95, 303544), (152, 189715), (190, 151772), (361, 79880), (380, 75886), (722, 39940), (760, 37943), (1444, 19970), (1805, 15976), (1997, 14440), (2888, 9985), (3610, 7988), (3994, 7220)]