18205740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{14449}}^1$

素因数の和:14471

約数の個数: 72

約数和(自身を含む): 63117600

約数和(自身を除く): 44911860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 14449, 28898, 43347, 57796, 72245, 86694, 101143, 130041, 144490, 173388, 202286, 216735, 260082, 288980, 303429, 404572, 433470, 505715, 520164, 606858, 650205, 866940, 910287, 1011430, 1213716, 1300410, 1517145, 1820574, 2022860, 2600820, 3034290, 3641148, 4551435, 6068580, 9102870, 18205740]

約数ペア:

[(1, 18205740), (2, 9102870), (3, 6068580), (4, 4551435), (5, 3641148), (6, 3034290), (7, 2600820), (9, 2022860), (10, 1820574), (12, 1517145), (14, 1300410), (15, 1213716), (18, 1011430), (20, 910287), (21, 866940), (28, 650205), (30, 606858), (35, 520164), (36, 505715), (42, 433470), (45, 404572), (60, 303429), (63, 288980), (70, 260082), (84, 216735), (90, 202286), (105, 173388), (126, 144490), (140, 130041), (180, 101143), (210, 86694), (252, 72245), (315, 57796), (420, 43347), (630, 28898), (1260, 14449)]