81459720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3187}}^1$

素因数の和:3275

約数の個数: 96

約数和(自身を含む): 268557120

約数和(自身を除く): 187097400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 639, 710, 852, 1065, 1278, 1420, 1704, 2130, 2556, 2840, 3187, 3195, 4260, 5112, 6374, 6390, 8520, 9561, 12748, 12780, 15935, 19122, 25496, 25560, 28683, 31870, 38244, 47805, 57366, 63740, 76488, 95610, 114732, 127480, 143415, 191220, 226277, 229464, 286830, 382440, 452554, 573660, 678831, 905108, 1131385, 1147320, 1357662, 1810216, 2036493, 2262770, 2715324, 3394155, 4072986, 4525540, 5430648, 6788310, 8145972, 9051080, 10182465, 13576620, 16291944, 20364930, 27153240, 40729860, 81459720]

約数ペア:

[(1, 81459720), (2, 40729860), (3, 27153240), (4, 20364930), (5, 16291944), (6, 13576620), (8, 10182465), (9, 9051080), (10, 8145972), (12, 6788310), (15, 5430648), (18, 4525540), (20, 4072986), (24, 3394155), (30, 2715324), (36, 2262770), (40, 2036493), (45, 1810216), (60, 1357662), (71, 1147320), (72, 1131385), (90, 905108), (120, 678831), (142, 573660), (180, 452554), (213, 382440), (284, 286830), (355, 229464), (360, 226277), (426, 191220), (568, 143415), (639, 127480), (710, 114732), (852, 95610), (1065, 76488), (1278, 63740), (1420, 57366), (1704, 47805), (2130, 38244), (2556, 31870), (2840, 28683), (3187, 25560), (3195, 25496), (4260, 19122), (5112, 15935), (6374, 12780), (6390, 12748), (8520, 9561)]