31269940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{947}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 71350272

約数和(自身を除く): 40080332

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 947, 1270, 1651, 1894, 2540, 3302, 3788, 4735, 6604, 8255, 9470, 12311, 16510, 18940, 24622, 33020, 49244, 61555, 120269, 123110, 240538, 246220, 481076, 601345, 1202690, 1563497, 2405380, 3126994, 6253988, 7817485, 15634970, 31269940]

約数ペア:

[(1, 31269940), (2, 15634970), (4, 7817485), (5, 6253988), (10, 3126994), (13, 2405380), (20, 1563497), (26, 1202690), (52, 601345), (65, 481076), (127, 246220), (130, 240538), (254, 123110), (260, 120269), (508, 61555), (635, 49244), (947, 33020), (1270, 24622), (1651, 18940), (1894, 16510), (2540, 12311), (3302, 9470), (3788, 8255), (4735, 6604)]