21452804980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^2\times {\mathrm{103}}^1\times {\mathrm{7607}}^1$

素因数の和:7793

約数の個数: 72

約数和(自身を含む): 46757063808

約数和(自身を除く): 25304258828

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 103, 148, 185, 206, 370, 412, 515, 740, 1030, 1369, 2060, 2738, 3811, 5476, 6845, 7607, 7622, 13690, 15214, 15244, 19055, 27380, 30428, 38035, 38110, 76070, 76220, 141007, 152140, 281459, 282014, 562918, 564028, 705035, 783521, 1125836, 1407295, 1410070, 1567042, 2814590, 2820140, 3134084, 3917605, 5629180, 7835210, 10413983, 15670420, 20827966, 28990277, 41655932, 52069915, 57980554, 104139830, 115961108, 144951385, 208279660, 289902770, 579805540, 1072640249, 2145280498, 4290560996, 5363201245, 10726402490, 21452804980]

約数ペア:

[(1, 21452804980), (2, 10726402490), (4, 5363201245), (5, 4290560996), (10, 2145280498), (20, 1072640249), (37, 579805540), (74, 289902770), (103, 208279660), (148, 144951385), (185, 115961108), (206, 104139830), (370, 57980554), (412, 52069915), (515, 41655932), (740, 28990277), (1030, 20827966), (1369, 15670420), (2060, 10413983), (2738, 7835210), (3811, 5629180), (5476, 3917605), (6845, 3134084), (7607, 2820140), (7622, 2814590), (13690, 1567042), (15214, 1410070), (15244, 1407295), (19055, 1125836), (27380, 783521), (30428, 705035), (38035, 564028), (38110, 562918), (76070, 282014), (76220, 281459), (141007, 152140)]