257904438

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{541}}^1$

素因数の和:821

約数の個数: 64

約数和(自身を含む): 584423424

約数和(自身を除く): 326518986

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 93, 186, 233, 341, 466, 541, 682, 699, 1023, 1082, 1398, 1623, 2046, 2563, 3246, 5126, 5951, 7223, 7689, 11902, 14446, 15378, 16771, 17853, 21669, 33542, 35706, 43338, 50313, 79453, 100626, 126053, 158906, 184481, 238359, 252106, 368962, 378159, 476718, 553443, 756318, 1106886, 1386583, 2773166, 3907643, 4159749, 7815286, 8319498, 11722929, 23445858, 42984073, 85968146, 128952219, 257904438]

約数ペア:

[(1, 257904438), (2, 128952219), (3, 85968146), (6, 42984073), (11, 23445858), (22, 11722929), (31, 8319498), (33, 7815286), (62, 4159749), (66, 3907643), (93, 2773166), (186, 1386583), (233, 1106886), (341, 756318), (466, 553443), (541, 476718), (682, 378159), (699, 368962), (1023, 252106), (1082, 238359), (1398, 184481), (1623, 158906), (2046, 126053), (2563, 100626), (3246, 79453), (5126, 50313), (5951, 43338), (7223, 35706), (7689, 33542), (11902, 21669), (14446, 17853), (15378, 16771)]