72391865

素因数分解:

$5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 116121600

約数和(自身を除く): 43729735

約数列:

[1, 5, 7, 13, 17, 35, 49, 65, 85, 91, 119, 191, 221, 245, 343, 455, 595, 637, 833, 955, 1105, 1337, 1547, 1715, 2483, 3185, 3247, 4165, 4459, 5831, 6685, 7735, 9359, 10829, 12415, 16235, 17381, 22295, 22729, 29155, 42211, 46795, 54145, 65513, 75803, 86905, 113645, 121667, 159103, 211055, 295477, 327565, 379015, 608335, 795515, 851669, 1113721, 1477385, 2068339, 4258345, 5568605, 10341695, 14478373, 72391865]

約数ペア:

[(1, 72391865), (5, 14478373), (7, 10341695), (13, 5568605), (17, 4258345), (35, 2068339), (49, 1477385), (65, 1113721), (85, 851669), (91, 795515), (119, 608335), (191, 379015), (221, 327565), (245, 295477), (343, 211055), (455, 159103), (595, 121667), (637, 113645), (833, 86905), (955, 75803), (1105, 65513), (1337, 54145), (1547, 46795), (1715, 42211), (2483, 29155), (3185, 22729), (3247, 22295), (4165, 17381), (4459, 16235), (5831, 12415), (6685, 10829), (7735, 9359)]