638066884

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{22189}}^1$

素因数の和:22292

約数の個数: 48

約数和(自身を含む): 1391756800

約数和(自身を除く): 753689916

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 79, 91, 158, 182, 316, 364, 553, 1027, 1106, 2054, 2212, 4108, 7189, 14378, 22189, 28756, 44378, 88756, 155323, 288457, 310646, 576914, 621292, 1153828, 1752931, 2019199, 3505862, 4038398, 7011724, 8076796, 12270517, 22788103, 24541034, 45576206, 49082068, 91152412, 159516721, 319033442, 638066884]

約数ペア:

[(1, 638066884), (2, 319033442), (4, 159516721), (7, 91152412), (13, 49082068), (14, 45576206), (26, 24541034), (28, 22788103), (52, 12270517), (79, 8076796), (91, 7011724), (158, 4038398), (182, 3505862), (316, 2019199), (364, 1752931), (553, 1153828), (1027, 621292), (1106, 576914), (2054, 310646), (2212, 288457), (4108, 155323), (7189, 88756), (14378, 44378), (22189, 28756)]