81178070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 156362400

約数和(自身を除く): 75184330

約数列:

[1, 2, 5, 10, 19, 38, 95, 113, 190, 199, 226, 361, 398, 565, 722, 995, 1130, 1805, 1990, 2147, 3610, 3781, 4294, 7562, 10735, 18905, 21470, 22487, 37810, 40793, 44974, 71839, 81586, 112435, 143678, 203965, 224870, 359195, 407930, 427253, 718390, 854506, 2136265, 4272530, 8117807, 16235614, 40589035, 81178070]

約数ペア:

[(1, 81178070), (2, 40589035), (5, 16235614), (10, 8117807), (19, 4272530), (38, 2136265), (95, 854506), (113, 718390), (190, 427253), (199, 407930), (226, 359195), (361, 224870), (398, 203965), (565, 143678), (722, 112435), (995, 81586), (1130, 71839), (1805, 44974), (1990, 40793), (2147, 37810), (3610, 22487), (3781, 21470), (4294, 18905), (7562, 10735)]