81925956

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2153}}^1$

素因数の和:2321

約数の個数: 72

約数和(自身を含む): 238353024

約数和(自身を除く): 156427068

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 151, 252, 302, 453, 604, 906, 1057, 1359, 1812, 2114, 2153, 2718, 3171, 4228, 4306, 5436, 6342, 6459, 8612, 9513, 12684, 12918, 15071, 19026, 19377, 25836, 30142, 38052, 38754, 45213, 60284, 77508, 90426, 135639, 180852, 271278, 325103, 542556, 650206, 975309, 1300412, 1950618, 2275721, 2925927, 3901236, 4551442, 5851854, 6827163, 9102884, 11703708, 13654326, 20481489, 27308652, 40962978, 81925956]

約数ペア:

[(1, 81925956), (2, 40962978), (3, 27308652), (4, 20481489), (6, 13654326), (7, 11703708), (9, 9102884), (12, 6827163), (14, 5851854), (18, 4551442), (21, 3901236), (28, 2925927), (36, 2275721), (42, 1950618), (63, 1300412), (84, 975309), (126, 650206), (151, 542556), (252, 325103), (302, 271278), (453, 180852), (604, 135639), (906, 90426), (1057, 77508), (1359, 60284), (1812, 45213), (2114, 38754), (2153, 38052), (2718, 30142), (3171, 25836), (4228, 19377), (4306, 19026), (5436, 15071), (6342, 12918), (6459, 12684), (8612, 9513)]