16356220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 38035872

約数和(自身を除く): 21679652

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 37, 46, 62, 74, 92, 115, 124, 148, 155, 185, 230, 310, 370, 460, 620, 713, 740, 851, 961, 1147, 1426, 1702, 1922, 2294, 2852, 3404, 3565, 3844, 4255, 4588, 4805, 5735, 7130, 8510, 9610, 11470, 14260, 17020, 19220, 22103, 22940, 26381, 35557, 44206, 52762, 71114, 88412, 105524, 110515, 131905, 142228, 177785, 221030, 263810, 355570, 442060, 527620, 711140, 817811, 1635622, 3271244, 4089055, 8178110, 16356220]

約数ペア:

[(1, 16356220), (2, 8178110), (4, 4089055), (5, 3271244), (10, 1635622), (20, 817811), (23, 711140), (31, 527620), (37, 442060), (46, 355570), (62, 263810), (74, 221030), (92, 177785), (115, 142228), (124, 131905), (148, 110515), (155, 105524), (185, 88412), (230, 71114), (310, 52762), (370, 44206), (460, 35557), (620, 26381), (713, 22940), (740, 22103), (851, 19220), (961, 17020), (1147, 14260), (1426, 11470), (1702, 9610), (1922, 8510), (2294, 7130), (2852, 5735), (3404, 4805), (3565, 4588), (3844, 4255)]