54781220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1933}}^1$

素因数の和:2064

約数の個数: 48

約数和(自身を含む): 125091120

約数和(自身を除く): 70309900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 1933, 2180, 2834, 3866, 5668, 7085, 7732, 9665, 14170, 19330, 25129, 28340, 38660, 50258, 100516, 125645, 210697, 251290, 421394, 502580, 842788, 1053485, 2106970, 2739061, 4213940, 5478122, 10956244, 13695305, 27390610, 54781220]

約数ペア:

[(1, 54781220), (2, 27390610), (4, 13695305), (5, 10956244), (10, 5478122), (13, 4213940), (20, 2739061), (26, 2106970), (52, 1053485), (65, 842788), (109, 502580), (130, 421394), (218, 251290), (260, 210697), (436, 125645), (545, 100516), (1090, 50258), (1417, 38660), (1933, 28340), (2180, 25129), (2834, 19330), (3866, 14170), (5668, 9665), (7085, 7732)]