81666720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56713}}^1$

素因数の和:56734

約数の個数: 72

約数和(自身を含む): 278692596

約数和(自身を除く): 197025876

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, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56713, 113426, 170139, 226852, 283565, 340278, 453704, 510417, 567130, 680556, 850695, 907408, 1020834, 1134260, 1361112, 1701390, 1814816, 2041668, 2268520, 2552085, 2722224, 3402780, 4083336, 4537040, 5104170, 5444448, 6805560, 8166672, 9074080, 10208340, 13611120, 16333344, 20416680, 27222240, 40833360, 81666720]

約数ペア:

[(1, 81666720), (2, 40833360), (3, 27222240), (4, 20416680), (5, 16333344), (6, 13611120), (8, 10208340), (9, 9074080), (10, 8166672), (12, 6805560), (15, 5444448), (16, 5104170), (18, 4537040), (20, 4083336), (24, 3402780), (30, 2722224), (32, 2552085), (36, 2268520), (40, 2041668), (45, 1814816), (48, 1701390), (60, 1361112), (72, 1134260), (80, 1020834), (90, 907408), (96, 850695), (120, 680556), (144, 567130), (160, 510417), (180, 453704), (240, 340278), (288, 283565), (360, 226852), (480, 170139), (720, 113426), (1440, 56713)]