19508445

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 39726720

約数和(自身を除く): 20218275

約数列:

[1, 3, 5, 9, 11, 15, 27, 29, 33, 45, 55, 81, 87, 99, 135, 145, 151, 165, 261, 297, 319, 405, 435, 453, 495, 755, 783, 891, 957, 1305, 1359, 1485, 1595, 1661, 2265, 2349, 2871, 3915, 4077, 4379, 4455, 4785, 4983, 6795, 8305, 8613, 11745, 12231, 13137, 14355, 14949, 20385, 21895, 24915, 25839, 39411, 43065, 44847, 48169, 61155, 65685, 74745, 118233, 129195, 134541, 144507, 197055, 224235, 240845, 354699, 433521, 591165, 672705, 722535, 1300563, 1773495, 2167605, 3901689, 6502815, 19508445]

約数ペア:

[(1, 19508445), (3, 6502815), (5, 3901689), (9, 2167605), (11, 1773495), (15, 1300563), (27, 722535), (29, 672705), (33, 591165), (45, 433521), (55, 354699), (81, 240845), (87, 224235), (99, 197055), (135, 144507), (145, 134541), (151, 129195), (165, 118233), (261, 74745), (297, 65685), (319, 61155), (405, 48169), (435, 44847), (453, 43065), (495, 39411), (755, 25839), (783, 24915), (891, 21895), (957, 20385), (1305, 14949), (1359, 14355), (1485, 13137), (1595, 12231), (1661, 11745), (2265, 8613), (2349, 8305), (2871, 6795), (3915, 4983), (4077, 4785), (4379, 4455)]