128889760

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6343}}^1$

素因数の和:6485

約数の個数: 48

約数和(自身を含む): 306948096

約数和(自身を除く): 178058336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6343, 10160, 12686, 20320, 25372, 31715, 50744, 63430, 101488, 126860, 202976, 253720, 507440, 805561, 1014880, 1611122, 3222244, 4027805, 6444488, 8055610, 12888976, 16111220, 25777952, 32222440, 64444880, 128889760]

約数ペア:

[(1, 128889760), (2, 64444880), (4, 32222440), (5, 25777952), (8, 16111220), (10, 12888976), (16, 8055610), (20, 6444488), (32, 4027805), (40, 3222244), (80, 1611122), (127, 1014880), (160, 805561), (254, 507440), (508, 253720), (635, 202976), (1016, 126860), (1270, 101488), (2032, 63430), (2540, 50744), (4064, 31715), (5080, 25372), (6343, 20320), (10160, 12686)]