80415900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:668

約数の個数: 108

約数和(自身を含む): 253890000

約数和(自身を除く): 173474100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 199, 225, 300, 398, 449, 450, 597, 796, 898, 900, 995, 1194, 1347, 1791, 1796, 1990, 2245, 2388, 2694, 2985, 3582, 3980, 4041, 4490, 4975, 5388, 5970, 6735, 7164, 8082, 8955, 8980, 9950, 11225, 11940, 13470, 14925, 16164, 17910, 19900, 20205, 22450, 26940, 29850, 33675, 35820, 40410, 44775, 44900, 59700, 67350, 80820, 89351, 89550, 101025, 134700, 178702, 179100, 202050, 268053, 357404, 404100, 446755, 536106, 804159, 893510, 1072212, 1340265, 1608318, 1787020, 2233775, 2680530, 3216636, 4020795, 4467550, 5361060, 6701325, 8041590, 8935100, 13402650, 16083180, 20103975, 26805300, 40207950, 80415900]

約数ペア:

[(1, 80415900), (2, 40207950), (3, 26805300), (4, 20103975), (5, 16083180), (6, 13402650), (9, 8935100), (10, 8041590), (12, 6701325), (15, 5361060), (18, 4467550), (20, 4020795), (25, 3216636), (30, 2680530), (36, 2233775), (45, 1787020), (50, 1608318), (60, 1340265), (75, 1072212), (90, 893510), (100, 804159), (150, 536106), (180, 446755), (199, 404100), (225, 357404), (300, 268053), (398, 202050), (449, 179100), (450, 178702), (597, 134700), (796, 101025), (898, 89550), (900, 89351), (995, 80820), (1194, 67350), (1347, 59700), (1791, 44900), (1796, 44775), (1990, 40410), (2245, 35820), (2388, 33675), (2694, 29850), (2985, 26940), (3582, 22450), (3980, 20205), (4041, 19900), (4490, 17910), (4975, 16164), (5388, 14925), (5970, 13470), (6735, 11940), (7164, 11225), (8082, 9950), (8955, 8980)]