30145720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{523}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 74701440

約数和(自身を除く): 44555720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 440, 523, 524, 655, 1046, 1048, 1310, 1441, 2092, 2615, 2620, 2882, 4184, 5230, 5240, 5753, 5764, 7205, 10460, 11506, 11528, 14410, 20920, 23012, 28765, 28820, 46024, 57530, 57640, 68513, 115060, 137026, 230120, 274052, 342565, 548104, 685130, 753643, 1370260, 1507286, 2740520, 3014572, 3768215, 6029144, 7536430, 15072860, 30145720]

約数ペア:

[(1, 30145720), (2, 15072860), (4, 7536430), (5, 6029144), (8, 3768215), (10, 3014572), (11, 2740520), (20, 1507286), (22, 1370260), (40, 753643), (44, 685130), (55, 548104), (88, 342565), (110, 274052), (131, 230120), (220, 137026), (262, 115060), (440, 68513), (523, 57640), (524, 57530), (655, 46024), (1046, 28820), (1048, 28765), (1310, 23012), (1441, 20920), (2092, 14410), (2615, 11528), (2620, 11506), (2882, 10460), (4184, 7205), (5230, 5764), (5240, 5753)]