7997990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:102

約数の個数: 128

約数和(自身を含む): 20901888

約数和(自身を除く): 12903898

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 17, 22, 26, 34, 35, 47, 55, 65, 70, 77, 85, 91, 94, 110, 119, 130, 143, 154, 170, 182, 187, 221, 235, 238, 286, 329, 374, 385, 442, 455, 470, 517, 595, 611, 658, 715, 770, 799, 910, 935, 1001, 1034, 1105, 1190, 1222, 1309, 1430, 1547, 1598, 1645, 1870, 2002, 2210, 2431, 2585, 2618, 3055, 3094, 3290, 3619, 3995, 4277, 4862, 5005, 5170, 5593, 6110, 6545, 6721, 7238, 7735, 7990, 8554, 8789, 10010, 10387, 11186, 12155, 13090, 13442, 15470, 17017, 17578, 18095, 20774, 21385, 24310, 27965, 33605, 34034, 36190, 42770, 43945, 47047, 51935, 55930, 61523, 67210, 72709, 85085, 87890, 94094, 103870, 114257, 123046, 145418, 170170, 228514, 235235, 307615, 363545, 470470, 571285, 615230, 727090, 799799, 1142570, 1599598, 3998995, 7997990]

約数ペア:

[(1, 7997990), (2, 3998995), (5, 1599598), (7, 1142570), (10, 799799), (11, 727090), (13, 615230), (14, 571285), (17, 470470), (22, 363545), (26, 307615), (34, 235235), (35, 228514), (47, 170170), (55, 145418), (65, 123046), (70, 114257), (77, 103870), (85, 94094), (91, 87890), (94, 85085), (110, 72709), (119, 67210), (130, 61523), (143, 55930), (154, 51935), (170, 47047), (182, 43945), (187, 42770), (221, 36190), (235, 34034), (238, 33605), (286, 27965), (329, 24310), (374, 21385), (385, 20774), (442, 18095), (455, 17578), (470, 17017), (517, 15470), (595, 13442), (611, 13090), (658, 12155), (715, 11186), (770, 10387), (799, 10010), (910, 8789), (935, 8554), (1001, 7990), (1034, 7735), (1105, 7238), (1190, 6721), (1222, 6545), (1309, 6110), (1430, 5593), (1547, 5170), (1598, 5005), (1645, 4862), (1870, 4277), (2002, 3995), (2210, 3619), (2431, 3290), (2585, 3094), (2618, 3055)]