20615310

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:871

約数の個数: 80

約数和(自身を含む): 57290112

約数和(自身を除く): 36674802

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 810, 821, 837, 930, 1395, 1642, 1674, 2463, 2511, 2790, 4105, 4185, 4926, 5022, 7389, 8210, 8370, 12315, 12555, 14778, 22167, 24630, 25110, 25451, 36945, 44334, 50902, 66501, 73890, 76353, 110835, 127255, 133002, 152706, 221670, 229059, 254510, 332505, 381765, 458118, 665010, 687177, 763530, 1145295, 1374354, 2061531, 2290590, 3435885, 4123062, 6871770, 10307655, 20615310]

約数ペア:

[(1, 20615310), (2, 10307655), (3, 6871770), (5, 4123062), (6, 3435885), (9, 2290590), (10, 2061531), (15, 1374354), (18, 1145295), (27, 763530), (30, 687177), (31, 665010), (45, 458118), (54, 381765), (62, 332505), (81, 254510), (90, 229059), (93, 221670), (135, 152706), (155, 133002), (162, 127255), (186, 110835), (270, 76353), (279, 73890), (310, 66501), (405, 50902), (465, 44334), (558, 36945), (810, 25451), (821, 25110), (837, 24630), (930, 22167), (1395, 14778), (1642, 12555), (1674, 12315), (2463, 8370), (2511, 8210), (2790, 7389), (4105, 5022), (4185, 4926)]