81795660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1621}}^1$

素因数の和:1691

約数の個数: 72

約数和(自身を含む): 237344016

約数和(自身を除く): 155548356

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 841, 870, 1621, 1682, 1740, 2523, 3242, 3364, 4205, 4863, 5046, 6484, 8105, 8410, 9726, 10092, 12615, 16210, 16820, 19452, 24315, 25230, 32420, 47009, 48630, 50460, 94018, 97260, 141027, 188036, 235045, 282054, 470090, 564108, 705135, 940180, 1363261, 1410270, 2726522, 2820540, 4089783, 5453044, 6816305, 8179566, 13632610, 16359132, 20448915, 27265220, 40897830, 81795660]

約数ペア:

[(1, 81795660), (2, 40897830), (3, 27265220), (4, 20448915), (5, 16359132), (6, 13632610), (10, 8179566), (12, 6816305), (15, 5453044), (20, 4089783), (29, 2820540), (30, 2726522), (58, 1410270), (60, 1363261), (87, 940180), (116, 705135), (145, 564108), (174, 470090), (290, 282054), (348, 235045), (435, 188036), (580, 141027), (841, 97260), (870, 94018), (1621, 50460), (1682, 48630), (1740, 47009), (2523, 32420), (3242, 25230), (3364, 24315), (4205, 19452), (4863, 16820), (5046, 16210), (6484, 12615), (8105, 10092), (8410, 9726)]