128681328

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{16447}}^1$

素因数の和:16621

約数の個数: 40

約数和(自身を含む): 334486528

約数和(自身を除く): 205805200

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 3912, 7824, 16447, 32894, 49341, 65788, 98682, 131576, 197364, 263152, 394728, 789456, 2680861, 5361722, 8042583, 10723444, 16085166, 21446888, 32170332, 42893776, 64340664, 128681328]

約数ペア:

[(1, 128681328), (2, 64340664), (3, 42893776), (4, 32170332), (6, 21446888), (8, 16085166), (12, 10723444), (16, 8042583), (24, 5361722), (48, 2680861), (163, 789456), (326, 394728), (489, 263152), (652, 197364), (978, 131576), (1304, 98682), (1956, 65788), (2608, 49341), (3912, 32894), (7824, 16447)]