257393040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1072471}}^1$

素因数の和:1072487

約数の個数: 40

約数和(自身を含む): 797919168

約数和(自身を除く): 540526128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1072471, 2144942, 3217413, 4289884, 5362355, 6434826, 8579768, 10724710, 12869652, 16087065, 17159536, 21449420, 25739304, 32174130, 42898840, 51478608, 64348260, 85797680, 128696520, 257393040]

約数ペア:

[(1, 257393040), (2, 128696520), (3, 85797680), (4, 64348260), (5, 51478608), (6, 42898840), (8, 32174130), (10, 25739304), (12, 21449420), (15, 17159536), (16, 16087065), (20, 12869652), (24, 10724710), (30, 8579768), (40, 6434826), (48, 5362355), (60, 4289884), (80, 3217413), (120, 2144942), (240, 1072471)]