128663340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164953}}^1$

素因数の和:164978

約数の個数: 48

約数和(自身を含む): 387971808

約数和(自身を除く): 259308468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 164953, 329906, 494859, 659812, 824765, 989718, 1649530, 1979436, 2144389, 2474295, 3299060, 4288778, 4948590, 6433167, 8577556, 9897180, 10721945, 12866334, 21443890, 25732668, 32165835, 42887780, 64331670, 128663340]

約数ペア:

[(1, 128663340), (2, 64331670), (3, 42887780), (4, 32165835), (5, 25732668), (6, 21443890), (10, 12866334), (12, 10721945), (13, 9897180), (15, 8577556), (20, 6433167), (26, 4948590), (30, 4288778), (39, 3299060), (52, 2474295), (60, 2144389), (65, 1979436), (78, 1649530), (130, 989718), (156, 824765), (195, 659812), (260, 494859), (390, 329906), (780, 164953)]