1285660688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{325319}}^1$

素因数の和:325359

約数の個数: 40

約数和(自身を含む): 2823777600

約数和(自身を除く): 1538116912

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 325319, 650638, 1301276, 2602552, 4229147, 5205104, 6181061, 8458294, 12362122, 16916588, 24724244, 33833176, 49448488, 67666352, 80353793, 98896976, 160707586, 321415172, 642830344, 1285660688]

約数ペア:

[(1, 1285660688), (2, 642830344), (4, 321415172), (8, 160707586), (13, 98896976), (16, 80353793), (19, 67666352), (26, 49448488), (38, 33833176), (52, 24724244), (76, 16916588), (104, 12362122), (152, 8458294), (208, 6181061), (247, 5205104), (304, 4229147), (494, 2602552), (988, 1301276), (1976, 650638), (3952, 325319)]