128173880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{188491}}^1$

素因数の和:188519

約数の個数: 32

約数和(自身を含む): 305357040

約数和(自身を除く): 177183160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 188491, 376982, 753964, 942455, 1507928, 1884910, 3204347, 3769820, 6408694, 7539640, 12817388, 16021735, 25634776, 32043470, 64086940, 128173880]

約数ペア:

[(1, 128173880), (2, 64086940), (4, 32043470), (5, 25634776), (8, 16021735), (10, 12817388), (17, 7539640), (20, 6408694), (34, 3769820), (40, 3204347), (68, 1884910), (85, 1507928), (136, 942455), (170, 753964), (340, 376982), (680, 188491)]