256906260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109789}}^1$

素因数の和:109817

約数の個数: 72

約数和(自身を含む): 839234760

約数和(自身を除く): 582328500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 109789, 219578, 329367, 439156, 548945, 658734, 988101, 1097890, 1317468, 1427257, 1646835, 1976202, 2195780, 2854514, 3293670, 3952404, 4281771, 4940505, 5709028, 6587340, 7136285, 8563542, 9881010, 12845313, 14272570, 17127084, 19762020, 21408855, 25690626, 28545140, 42817710, 51381252, 64226565, 85635420, 128453130, 256906260]

約数ペア:

[(1, 256906260), (2, 128453130), (3, 85635420), (4, 64226565), (5, 51381252), (6, 42817710), (9, 28545140), (10, 25690626), (12, 21408855), (13, 19762020), (15, 17127084), (18, 14272570), (20, 12845313), (26, 9881010), (30, 8563542), (36, 7136285), (39, 6587340), (45, 5709028), (52, 4940505), (60, 4281771), (65, 3952404), (78, 3293670), (90, 2854514), (117, 2195780), (130, 1976202), (156, 1646835), (180, 1427257), (195, 1317468), (234, 1097890), (260, 988101), (390, 658734), (468, 548945), (585, 439156), (780, 329367), (1170, 219578), (2340, 109789)]