1387403775

素因数分解:

$3^3\times 5^2\times {\mathrm{109}}^2\times {\mathrm{173}}^1$

素因数の和:410

約数の個数: 72

約数和(自身を含む): 2587178160

約数和(自身を除く): 1199774385

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 109, 135, 173, 225, 327, 519, 545, 675, 865, 981, 1557, 1635, 2595, 2725, 2943, 4325, 4671, 4905, 7785, 8175, 11881, 12975, 14715, 18857, 23355, 24525, 35643, 38925, 56571, 59405, 73575, 94285, 106929, 116775, 169713, 178215, 282855, 297025, 320787, 471425, 509139, 534645, 848565, 891075, 1414275, 1603935, 2055413, 2545695, 2673225, 4242825, 6166239, 8019675, 10277065, 12728475, 18498717, 30831195, 51385325, 55496151, 92493585, 154155975, 277480755, 462467925, 1387403775]

約数ペア:

[(1, 1387403775), (3, 462467925), (5, 277480755), (9, 154155975), (15, 92493585), (25, 55496151), (27, 51385325), (45, 30831195), (75, 18498717), (109, 12728475), (135, 10277065), (173, 8019675), (225, 6166239), (327, 4242825), (519, 2673225), (545, 2545695), (675, 2055413), (865, 1603935), (981, 1414275), (1557, 891075), (1635, 848565), (2595, 534645), (2725, 509139), (2943, 471425), (4325, 320787), (4671, 297025), (4905, 282855), (7785, 178215), (8175, 169713), (11881, 116775), (12975, 106929), (14715, 94285), (18857, 73575), (23355, 59405), (24525, 56571), (35643, 38925)]