81474356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 155131200

約数和(自身を除く): 73656844

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 113, 179, 212, 226, 358, 452, 716, 1007, 2014, 2147, 3401, 4028, 4294, 5989, 6802, 8588, 9487, 11978, 13604, 18974, 20227, 23956, 37948, 40454, 80908, 113791, 180253, 227582, 360506, 384313, 455164, 721012, 768626, 1072031, 1537252, 2144062, 4288124, 20368589, 40737178, 81474356]

約数ペア:

[(1, 81474356), (2, 40737178), (4, 20368589), (19, 4288124), (38, 2144062), (53, 1537252), (76, 1072031), (106, 768626), (113, 721012), (179, 455164), (212, 384313), (226, 360506), (358, 227582), (452, 180253), (716, 113791), (1007, 80908), (2014, 40454), (2147, 37948), (3401, 23956), (4028, 20227), (4294, 18974), (5989, 13604), (6802, 11978), (8588, 9487)]