281880222

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{367}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 625658880

約数和(自身を除く): 343778658

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 229, 258, 367, 458, 559, 687, 734, 1101, 1118, 1374, 1677, 2202, 2977, 3354, 4771, 5954, 8931, 9542, 9847, 14313, 15781, 17862, 19694, 28626, 29541, 31562, 47343, 59082, 84043, 94686, 128011, 168086, 205153, 252129, 256022, 384033, 410306, 504258, 615459, 768066, 1092559, 1230918, 2185118, 3277677, 3613849, 6555354, 7227698, 10841547, 21683094, 46980037, 93960074, 140940111, 281880222]

約数ペア:

[(1, 281880222), (2, 140940111), (3, 93960074), (6, 46980037), (13, 21683094), (26, 10841547), (39, 7227698), (43, 6555354), (78, 3613849), (86, 3277677), (129, 2185118), (229, 1230918), (258, 1092559), (367, 768066), (458, 615459), (559, 504258), (687, 410306), (734, 384033), (1101, 256022), (1118, 252129), (1374, 205153), (1677, 168086), (2202, 128011), (2977, 94686), (3354, 84043), (4771, 59082), (5954, 47343), (8931, 31562), (9542, 29541), (9847, 28626), (14313, 19694), (15781, 17862)]