287900640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{199931}}^1$

素因数の和:199952

約数の個数: 72

約数和(自身を含む): 982465848

約数和(自身を除く): 694565208

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, 199931, 399862, 599793, 799724, 999655, 1199586, 1599448, 1799379, 1999310, 2399172, 2998965, 3198896, 3598758, 3998620, 4798344, 5997930, 6397792, 7197516, 7997240, 8996895, 9596688, 11995860, 14395032, 15994480, 17993790, 19193376, 23991720, 28790064, 31988960, 35987580, 47983440, 57580128, 71975160, 95966880, 143950320, 287900640]

約数ペア:

[(1, 287900640), (2, 143950320), (3, 95966880), (4, 71975160), (5, 57580128), (6, 47983440), (8, 35987580), (9, 31988960), (10, 28790064), (12, 23991720), (15, 19193376), (16, 17993790), (18, 15994480), (20, 14395032), (24, 11995860), (30, 9596688), (32, 8996895), (36, 7997240), (40, 7197516), (45, 6397792), (48, 5997930), (60, 4798344), (72, 3998620), (80, 3598758), (90, 3198896), (96, 2998965), (120, 2399172), (144, 1999310), (160, 1799379), (180, 1599448), (240, 1199586), (288, 999655), (360, 799724), (480, 599793), (720, 399862), (1440, 199931)]