81449760

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{3463}}^1$

素因数の和:3495

約数の個数: 144

約数和(自身を含む): 298541376

約数和(自身を除く): 217091616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3463, 3920, 4704, 5880, 6926, 7840, 10389, 11760, 13852, 17315, 20778, 23520, 24241, 27704, 34630, 41556, 48482, 51945, 55408, 69260, 72723, 83112, 96964, 103890, 110816, 121205, 138520, 145446, 166224, 169687, 193928, 207780, 242410, 277040, 290892, 332448, 339374, 363615, 387856, 415560, 484820, 509061, 554080, 581784, 678748, 727230, 775712, 831120, 848435, 969640, 1018122, 1163568, 1357496, 1454460, 1662240, 1696870, 1939280, 2036244, 2327136, 2545305, 2714992, 2908920, 3393740, 3878560, 4072488, 5090610, 5429984, 5817840, 6787480, 8144976, 10181220, 11635680, 13574960, 16289952, 20362440, 27149920, 40724880, 81449760]

約数ペア:

[(1, 81449760), (2, 40724880), (3, 27149920), (4, 20362440), (5, 16289952), (6, 13574960), (7, 11635680), (8, 10181220), (10, 8144976), (12, 6787480), (14, 5817840), (15, 5429984), (16, 5090610), (20, 4072488), (21, 3878560), (24, 3393740), (28, 2908920), (30, 2714992), (32, 2545305), (35, 2327136), (40, 2036244), (42, 1939280), (48, 1696870), (49, 1662240), (56, 1454460), (60, 1357496), (70, 1163568), (80, 1018122), (84, 969640), (96, 848435), (98, 831120), (105, 775712), (112, 727230), (120, 678748), (140, 581784), (147, 554080), (160, 509061), (168, 484820), (196, 415560), (210, 387856), (224, 363615), (240, 339374), (245, 332448), (280, 290892), (294, 277040), (336, 242410), (392, 207780), (420, 193928), (480, 169687), (490, 166224), (560, 145446), (588, 138520), (672, 121205), (735, 110816), (784, 103890), (840, 96964), (980, 83112), (1120, 72723), (1176, 69260), (1470, 55408), (1568, 51945), (1680, 48482), (1960, 41556), (2352, 34630), (2940, 27704), (3360, 24241), (3463, 23520), (3920, 20778), (4704, 17315), (5880, 13852), (6926, 11760), (7840, 10389)]