678539997

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{379}}^1$

素因数の和:476

約数の個数: 60

約数和(自身を含む): 1095795360

約数和(自身を除く): 417255363

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 207, 279, 379, 621, 713, 837, 961, 1137, 1863, 2139, 2511, 2883, 3411, 6417, 8649, 8717, 10233, 11749, 19251, 22103, 25947, 26151, 30699, 35247, 57753, 66309, 77841, 78453, 105741, 198927, 235359, 270227, 317223, 364219, 596781, 706077, 810681, 951669, 1092657, 1790343, 2432043, 3277971, 7296129, 8377037, 9833913, 21888387, 25131111, 29501739, 75393333, 226179999, 678539997]

約数ペア:

[(1, 678539997), (3, 226179999), (9, 75393333), (23, 29501739), (27, 25131111), (31, 21888387), (69, 9833913), (81, 8377037), (93, 7296129), (207, 3277971), (279, 2432043), (379, 1790343), (621, 1092657), (713, 951669), (837, 810681), (961, 706077), (1137, 596781), (1863, 364219), (2139, 317223), (2511, 270227), (2883, 235359), (3411, 198927), (6417, 105741), (8649, 78453), (8717, 77841), (10233, 66309), (11749, 57753), (19251, 35247), (22103, 30699), (25947, 26151)]