77938960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2857}}^1$

素因数の和:2912

約数の個数: 80

約数和(自身を含む): 204129792

約数和(自身を除く): 126190832

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 2857, 3410, 5456, 5714, 6820, 11428, 13640, 14285, 22856, 27280, 28570, 31427, 45712, 57140, 62854, 88567, 114280, 125708, 157135, 177134, 228560, 251416, 314270, 354268, 442835, 502832, 628540, 708536, 885670, 974237, 1257080, 1417072, 1771340, 1948474, 2514160, 3542680, 3896948, 4871185, 7085360, 7793896, 9742370, 15587792, 19484740, 38969480, 77938960]

約数ペア:

[(1, 77938960), (2, 38969480), (4, 19484740), (5, 15587792), (8, 9742370), (10, 7793896), (11, 7085360), (16, 4871185), (20, 3896948), (22, 3542680), (31, 2514160), (40, 1948474), (44, 1771340), (55, 1417072), (62, 1257080), (80, 974237), (88, 885670), (110, 708536), (124, 628540), (155, 502832), (176, 442835), (220, 354268), (248, 314270), (310, 251416), (341, 228560), (440, 177134), (496, 157135), (620, 125708), (682, 114280), (880, 88567), (1240, 62854), (1364, 57140), (1705, 45712), (2480, 31427), (2728, 28570), (2857, 27280), (3410, 22856), (5456, 14285), (5714, 13640), (6820, 11428)]