128564488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{65063}}^1$

素因数の和:65101

約数の個数: 32

約数和(自身を含む): 273268800

約数和(自身を除く): 144704312

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 65063, 130126, 260252, 520504, 845819, 1236197, 1691638, 2472394, 3383276, 4944788, 6766552, 9889576, 16070561, 32141122, 64282244, 128564488]

約数ペア:

[(1, 128564488), (2, 64282244), (4, 32141122), (8, 16070561), (13, 9889576), (19, 6766552), (26, 4944788), (38, 3383276), (52, 2472394), (76, 1691638), (104, 1236197), (152, 845819), (247, 520504), (494, 260252), (988, 130126), (1976, 65063)]