399942720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{138869}}^1$

素因数の和:138892

約数の個数: 84

約数和(自身を含む): 1375646220

約数和(自身を除く): 975703500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 138869, 277738, 416607, 555476, 694345, 833214, 1110952, 1249821, 1388690, 1666428, 2083035, 2221904, 2499642, 2777380, 3332856, 4166070, 4443808, 4999284, 5554760, 6249105, 6665712, 8332140, 8887616, 9998568, 11109520, 12498210, 13331424, 16664280, 19997136, 22219040, 24996420, 26662848, 33328560, 39994272, 44438080, 49992840, 66657120, 79988544, 99985680, 133314240, 199971360, 399942720]

約数ペア:

[(1, 399942720), (2, 199971360), (3, 133314240), (4, 99985680), (5, 79988544), (6, 66657120), (8, 49992840), (9, 44438080), (10, 39994272), (12, 33328560), (15, 26662848), (16, 24996420), (18, 22219040), (20, 19997136), (24, 16664280), (30, 13331424), (32, 12498210), (36, 11109520), (40, 9998568), (45, 8887616), (48, 8332140), (60, 6665712), (64, 6249105), (72, 5554760), (80, 4999284), (90, 4443808), (96, 4166070), (120, 3332856), (144, 2777380), (160, 2499642), (180, 2221904), (192, 2083035), (240, 1666428), (288, 1388690), (320, 1249821), (360, 1110952), (480, 833214), (576, 694345), (720, 555476), (960, 416607), (1440, 277738), (2880, 138869)]