20435085

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 40666080

約数和(自身を除く): 20230995

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 135, 139, 165, 243, 297, 363, 405, 417, 495, 605, 695, 891, 1089, 1215, 1251, 1485, 1529, 1815, 2085, 2673, 3267, 3753, 4455, 4587, 5445, 6255, 7645, 9801, 11259, 13365, 13761, 16335, 16819, 18765, 22935, 29403, 33777, 41283, 49005, 50457, 56295, 68805, 84095, 123849, 147015, 151371, 168885, 206415, 252285, 371547, 454113, 619245, 756855, 1362339, 1857735, 2270565, 4087017, 6811695, 20435085]

約数ペア:

[(1, 20435085), (3, 6811695), (5, 4087017), (9, 2270565), (11, 1857735), (15, 1362339), (27, 756855), (33, 619245), (45, 454113), (55, 371547), (81, 252285), (99, 206415), (121, 168885), (135, 151371), (139, 147015), (165, 123849), (243, 84095), (297, 68805), (363, 56295), (405, 50457), (417, 49005), (495, 41283), (605, 33777), (695, 29403), (891, 22935), (1089, 18765), (1215, 16819), (1251, 16335), (1485, 13761), (1529, 13365), (1815, 11259), (2085, 9801), (2673, 7645), (3267, 6255), (3753, 5445), (4455, 4587)]