205475440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2857}}^1$

素因数の和:2930

約数の個数: 80

約数和(自身を含む): 510324480

約数和(自身を除く): 304849040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 464, 496, 580, 620, 899, 1160, 1240, 1798, 2320, 2480, 2857, 3596, 4495, 5714, 7192, 8990, 11428, 14285, 14384, 17980, 22856, 28570, 35960, 45712, 57140, 71920, 82853, 88567, 114280, 165706, 177134, 228560, 331412, 354268, 414265, 442835, 662824, 708536, 828530, 885670, 1325648, 1417072, 1657060, 1771340, 2568443, 3314120, 3542680, 5136886, 6628240, 7085360, 10273772, 12842215, 20547544, 25684430, 41095088, 51368860, 102737720, 205475440]

約数ペア:

[(1, 205475440), (2, 102737720), (4, 51368860), (5, 41095088), (8, 25684430), (10, 20547544), (16, 12842215), (20, 10273772), (29, 7085360), (31, 6628240), (40, 5136886), (58, 3542680), (62, 3314120), (80, 2568443), (116, 1771340), (124, 1657060), (145, 1417072), (155, 1325648), (232, 885670), (248, 828530), (290, 708536), (310, 662824), (464, 442835), (496, 414265), (580, 354268), (620, 331412), (899, 228560), (1160, 177134), (1240, 165706), (1798, 114280), (2320, 88567), (2480, 82853), (2857, 71920), (3596, 57140), (4495, 45712), (5714, 35960), (7192, 28570), (8990, 22856), (11428, 17980), (14285, 14384)]