27521980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1327}}^1$

素因数の和:1414

約数の個数: 48

約数和(自身を含む): 62246016

約数和(自身を除く): 34724036

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 61, 68, 85, 122, 170, 244, 305, 340, 610, 1037, 1220, 1327, 2074, 2654, 4148, 5185, 5308, 6635, 10370, 13270, 20740, 22559, 26540, 45118, 80947, 90236, 112795, 161894, 225590, 323788, 404735, 451180, 809470, 1376099, 1618940, 2752198, 5504396, 6880495, 13760990, 27521980]

約数ペア:

[(1, 27521980), (2, 13760990), (4, 6880495), (5, 5504396), (10, 2752198), (17, 1618940), (20, 1376099), (34, 809470), (61, 451180), (68, 404735), (85, 323788), (122, 225590), (170, 161894), (244, 112795), (305, 90236), (340, 80947), (610, 45118), (1037, 26540), (1220, 22559), (1327, 20740), (2074, 13270), (2654, 10370), (4148, 6635), (5185, 5308)]