81982404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2879}}^1$

素因数の和:3009

約数の個数: 72

約数和(自身を含む): 239016960

約数和(自身を除く): 157034556

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 113, 126, 226, 252, 339, 452, 678, 791, 1017, 1356, 1582, 2034, 2373, 2879, 3164, 4068, 4746, 5758, 7119, 8637, 9492, 11516, 14238, 17274, 20153, 25911, 28476, 34548, 40306, 51822, 60459, 80612, 103644, 120918, 181377, 241836, 325327, 362754, 650654, 725508, 975981, 1301308, 1951962, 2277289, 2927943, 3903924, 4554578, 5855886, 6831867, 9109156, 11711772, 13663734, 20495601, 27327468, 40991202, 81982404]

約数ペア:

[(1, 81982404), (2, 40991202), (3, 27327468), (4, 20495601), (6, 13663734), (7, 11711772), (9, 9109156), (12, 6831867), (14, 5855886), (18, 4554578), (21, 3903924), (28, 2927943), (36, 2277289), (42, 1951962), (63, 1301308), (84, 975981), (113, 725508), (126, 650654), (226, 362754), (252, 325327), (339, 241836), (452, 181377), (678, 120918), (791, 103644), (1017, 80612), (1356, 60459), (1582, 51822), (2034, 40306), (2373, 34548), (2879, 28476), (3164, 25911), (4068, 20153), (4746, 17274), (5758, 14238), (7119, 11516), (8637, 9492)]