21770060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 52910592

約数和(自身を除く): 31140532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 37, 52, 62, 65, 73, 74, 124, 130, 146, 148, 155, 185, 260, 292, 310, 365, 370, 403, 481, 620, 730, 740, 806, 949, 962, 1147, 1460, 1612, 1898, 1924, 2015, 2263, 2294, 2405, 2701, 3796, 4030, 4526, 4588, 4745, 4810, 5402, 5735, 8060, 9052, 9490, 9620, 10804, 11315, 11470, 13505, 14911, 18980, 22630, 22940, 27010, 29419, 29822, 35113, 45260, 54020, 58838, 59644, 70226, 74555, 83731, 117676, 140452, 147095, 149110, 167462, 175565, 294190, 298220, 334924, 351130, 418655, 588380, 702260, 837310, 1088503, 1674620, 2177006, 4354012, 5442515, 10885030, 21770060]

約数ペア:

[(1, 21770060), (2, 10885030), (4, 5442515), (5, 4354012), (10, 2177006), (13, 1674620), (20, 1088503), (26, 837310), (31, 702260), (37, 588380), (52, 418655), (62, 351130), (65, 334924), (73, 298220), (74, 294190), (124, 175565), (130, 167462), (146, 149110), (148, 147095), (155, 140452), (185, 117676), (260, 83731), (292, 74555), (310, 70226), (365, 59644), (370, 58838), (403, 54020), (481, 45260), (620, 35113), (730, 29822), (740, 29419), (806, 27010), (949, 22940), (962, 22630), (1147, 18980), (1460, 14911), (1612, 13505), (1898, 11470), (1924, 11315), (2015, 10804), (2263, 9620), (2294, 9490), (2405, 9052), (2701, 8060), (3796, 5735), (4030, 5402), (4526, 4810), (4588, 4745)]