28205890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1999}}^1$

素因数の和:2106

約数の個数: 32

約数和(自身を含む): 54432000

約数和(自身を除く): 26226110

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 415, 830, 1411, 1999, 2822, 3998, 7055, 9995, 14110, 19990, 33983, 67966, 165917, 169915, 331834, 339830, 829585, 1659170, 2820589, 5641178, 14102945, 28205890]

約数ペア:

[(1, 28205890), (2, 14102945), (5, 5641178), (10, 2820589), (17, 1659170), (34, 829585), (83, 339830), (85, 331834), (166, 169915), (170, 165917), (415, 67966), (830, 33983), (1411, 19990), (1999, 14110), (2822, 9995), (3998, 7055)]