18986580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{337}}^1$

素因数の和:665

約数の個数: 72

約数和(自身を含む): 57948072

約数和(自身を除く): 38961492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 313, 337, 626, 674, 939, 1011, 1252, 1348, 1565, 1685, 1878, 2022, 2817, 3033, 3130, 3370, 3756, 4044, 4695, 5055, 5634, 6066, 6260, 6740, 9390, 10110, 11268, 12132, 14085, 15165, 18780, 20220, 28170, 30330, 56340, 60660, 105481, 210962, 316443, 421924, 527405, 632886, 949329, 1054810, 1265772, 1582215, 1898658, 2109620, 3164430, 3797316, 4746645, 6328860, 9493290, 18986580]

約数ペア:

[(1, 18986580), (2, 9493290), (3, 6328860), (4, 4746645), (5, 3797316), (6, 3164430), (9, 2109620), (10, 1898658), (12, 1582215), (15, 1265772), (18, 1054810), (20, 949329), (30, 632886), (36, 527405), (45, 421924), (60, 316443), (90, 210962), (180, 105481), (313, 60660), (337, 56340), (626, 30330), (674, 28170), (939, 20220), (1011, 18780), (1252, 15165), (1348, 14085), (1565, 12132), (1685, 11268), (1878, 10110), (2022, 9390), (2817, 6740), (3033, 6260), (3130, 6066), (3370, 5634), (3756, 5055), (4044, 4695)]