128210985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:875

約数の個数: 64

約数和(自身を含む): 262133760

約数和(自身を除く): 133922775

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 211, 315, 633, 643, 945, 1055, 1477, 1899, 1929, 3165, 3215, 4431, 4501, 5697, 5787, 7385, 9495, 9645, 13293, 13503, 17361, 22155, 22505, 28485, 28935, 39879, 40509, 66465, 67515, 86805, 121527, 135673, 199395, 202545, 407019, 607635, 678365, 949711, 1221057, 2035095, 2849133, 3663171, 4748555, 6105285, 8547399, 14245665, 18315855, 25642197, 42736995, 128210985]

約数ペア:

[(1, 128210985), (3, 42736995), (5, 25642197), (7, 18315855), (9, 14245665), (15, 8547399), (21, 6105285), (27, 4748555), (35, 3663171), (45, 2849133), (63, 2035095), (105, 1221057), (135, 949711), (189, 678365), (211, 607635), (315, 407019), (633, 202545), (643, 199395), (945, 135673), (1055, 121527), (1477, 86805), (1899, 67515), (1929, 66465), (3165, 40509), (3215, 39879), (4431, 28935), (4501, 28485), (5697, 22505), (5787, 22155), (7385, 17361), (9495, 13503), (9645, 13293)]