19294575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 34774560

約数和(自身を除く): 15479985

約数列:

[1, 3, 5, 15, 17, 25, 37, 51, 75, 85, 111, 185, 255, 409, 425, 555, 629, 925, 1227, 1275, 1887, 2045, 2775, 3145, 6135, 6953, 9435, 10225, 15133, 15725, 20859, 30675, 34765, 45399, 47175, 75665, 104295, 173825, 226995, 257261, 378325, 521475, 771783, 1134975, 1286305, 3858915, 6431525, 19294575]

約数ペア:

[(1, 19294575), (3, 6431525), (5, 3858915), (15, 1286305), (17, 1134975), (25, 771783), (37, 521475), (51, 378325), (75, 257261), (85, 226995), (111, 173825), (185, 104295), (255, 75665), (409, 47175), (425, 45399), (555, 34765), (629, 30675), (925, 20859), (1227, 15725), (1275, 15133), (1887, 10225), (2045, 9435), (2775, 6953), (3145, 6135)]