18340890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1399}}^1$

素因数の和:1451

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 30043110

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 138, 190, 230, 285, 345, 437, 570, 690, 874, 1311, 1399, 2185, 2622, 2798, 4197, 4370, 6555, 6995, 8394, 13110, 13990, 20985, 26581, 32177, 41970, 53162, 64354, 79743, 96531, 132905, 159486, 160885, 193062, 265810, 321770, 398715, 482655, 611363, 797430, 965310, 1222726, 1834089, 3056815, 3668178, 6113630, 9170445, 18340890]

約数ペア:

[(1, 18340890), (2, 9170445), (3, 6113630), (5, 3668178), (6, 3056815), (10, 1834089), (15, 1222726), (19, 965310), (23, 797430), (30, 611363), (38, 482655), (46, 398715), (57, 321770), (69, 265810), (95, 193062), (114, 160885), (115, 159486), (138, 132905), (190, 96531), (230, 79743), (285, 64354), (345, 53162), (437, 41970), (570, 32177), (690, 26581), (874, 20985), (1311, 13990), (1399, 13110), (2185, 8394), (2622, 6995), (2798, 6555), (4197, 4370)]