20125215

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{373}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 38507040

約数和(自身を除く): 18381825

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 109, 165, 327, 373, 495, 545, 981, 1119, 1199, 1635, 1865, 3357, 3597, 4103, 4905, 5595, 5995, 10791, 12309, 16785, 17985, 20515, 36927, 40657, 53955, 61545, 121971, 184635, 203285, 365913, 447227, 609855, 1341681, 1829565, 2236135, 4025043, 6708405, 20125215]

約数ペア:

[(1, 20125215), (3, 6708405), (5, 4025043), (9, 2236135), (11, 1829565), (15, 1341681), (33, 609855), (45, 447227), (55, 365913), (99, 203285), (109, 184635), (165, 121971), (327, 61545), (373, 53955), (495, 40657), (545, 36927), (981, 20515), (1119, 17985), (1199, 16785), (1635, 12309), (1865, 10791), (3357, 5995), (3597, 5595), (4103, 4905)]