240742280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{1303}}^1$

素因数の和:1494

約数の個数: 64

約数和(自身を含む): 563328000

約数和(自身を除く): 322585720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 149, 155, 248, 298, 310, 596, 620, 745, 1192, 1240, 1303, 1490, 2606, 2980, 4619, 5212, 5960, 6515, 9238, 10424, 13030, 18476, 23095, 26060, 36952, 40393, 46190, 52120, 80786, 92380, 161572, 184760, 194147, 201965, 323144, 388294, 403930, 776588, 807860, 970735, 1553176, 1615720, 1941470, 3882940, 6018557, 7765880, 12037114, 24074228, 30092785, 48148456, 60185570, 120371140, 240742280]

約数ペア:

[(1, 240742280), (2, 120371140), (4, 60185570), (5, 48148456), (8, 30092785), (10, 24074228), (20, 12037114), (31, 7765880), (40, 6018557), (62, 3882940), (124, 1941470), (149, 1615720), (155, 1553176), (248, 970735), (298, 807860), (310, 776588), (596, 403930), (620, 388294), (745, 323144), (1192, 201965), (1240, 194147), (1303, 184760), (1490, 161572), (2606, 92380), (2980, 80786), (4619, 52120), (5212, 46190), (5960, 40393), (6515, 36952), (9238, 26060), (10424, 23095), (13030, 18476)]