90203180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1993}}^1$

素因数の和:2106

約数の個数: 48

約数和(自身を含む): 198315264

約数和(自身を除く): 108112084

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 365, 620, 730, 1460, 1993, 2263, 3986, 4526, 7972, 9052, 9965, 11315, 19930, 22630, 39860, 45260, 61783, 123566, 145489, 247132, 290978, 308915, 581956, 617830, 727445, 1235660, 1454890, 2909780, 4510159, 9020318, 18040636, 22550795, 45101590, 90203180]

約数ペア:

[(1, 90203180), (2, 45101590), (4, 22550795), (5, 18040636), (10, 9020318), (20, 4510159), (31, 2909780), (62, 1454890), (73, 1235660), (124, 727445), (146, 617830), (155, 581956), (292, 308915), (310, 290978), (365, 247132), (620, 145489), (730, 123566), (1460, 61783), (1993, 45260), (2263, 39860), (3986, 22630), (4526, 19930), (7972, 11315), (9052, 9965)]