131721240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{821}}^1$

素因数の和:1033

約数の個数: 128

約数和(自身を含む): 454533120

約数和(自身を除く): 322811880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 191, 210, 280, 382, 420, 573, 764, 821, 840, 955, 1146, 1337, 1528, 1642, 1910, 2292, 2463, 2674, 2865, 3284, 3820, 4011, 4105, 4584, 4926, 5348, 5730, 5747, 6568, 6685, 7640, 8022, 8210, 9852, 10696, 11460, 11494, 12315, 13370, 16044, 16420, 17241, 19704, 20055, 22920, 22988, 24630, 26740, 28735, 32088, 32840, 34482, 40110, 45976, 49260, 53480, 57470, 68964, 80220, 86205, 98520, 114940, 137928, 156811, 160440, 172410, 229880, 313622, 344820, 470433, 627244, 689640, 784055, 940866, 1097677, 1254488, 1568110, 1881732, 2195354, 2352165, 3136220, 3293031, 3763464, 4390708, 4704330, 5488385, 6272440, 6586062, 8781416, 9408660, 10976770, 13172124, 16465155, 18817320, 21953540, 26344248, 32930310, 43907080, 65860620, 131721240]

約数ペア:

[(1, 131721240), (2, 65860620), (3, 43907080), (4, 32930310), (5, 26344248), (6, 21953540), (7, 18817320), (8, 16465155), (10, 13172124), (12, 10976770), (14, 9408660), (15, 8781416), (20, 6586062), (21, 6272440), (24, 5488385), (28, 4704330), (30, 4390708), (35, 3763464), (40, 3293031), (42, 3136220), (56, 2352165), (60, 2195354), (70, 1881732), (84, 1568110), (105, 1254488), (120, 1097677), (140, 940866), (168, 784055), (191, 689640), (210, 627244), (280, 470433), (382, 344820), (420, 313622), (573, 229880), (764, 172410), (821, 160440), (840, 156811), (955, 137928), (1146, 114940), (1337, 98520), (1528, 86205), (1642, 80220), (1910, 68964), (2292, 57470), (2463, 53480), (2674, 49260), (2865, 45976), (3284, 40110), (3820, 34482), (4011, 32840), (4105, 32088), (4584, 28735), (4926, 26740), (5348, 24630), (5730, 22988), (5747, 22920), (6568, 20055), (6685, 19704), (7640, 17241), (8022, 16420), (8210, 16044), (9852, 13370), (10696, 12315), (11460, 11494)]