28156245

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 50595840

約数和(自身を除く): 22439595

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 87, 145, 169, 195, 377, 383, 435, 507, 845, 1131, 1149, 1885, 1915, 2535, 4901, 4979, 5655, 5745, 11107, 14703, 14937, 24505, 24895, 33321, 55535, 64727, 73515, 74685, 144391, 166605, 194181, 323635, 433173, 721955, 970905, 1877083, 2165865, 5631249, 9385415, 28156245]

約数ペア:

[(1, 28156245), (3, 9385415), (5, 5631249), (13, 2165865), (15, 1877083), (29, 970905), (39, 721955), (65, 433173), (87, 323635), (145, 194181), (169, 166605), (195, 144391), (377, 74685), (383, 73515), (435, 64727), (507, 55535), (845, 33321), (1131, 24895), (1149, 24505), (1885, 14937), (1915, 14703), (2535, 11107), (4901, 5745), (4979, 5655)]