1279203920

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{551381}}^1$

素因数の和:551423

約数の個数: 40

約数和(自身を含む): 3076711560

約数和(自身を除く): 1797507640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 551381, 1102762, 2205524, 2756905, 4411048, 5513810, 8822096, 11027620, 15990049, 22055240, 31980098, 44110480, 63960196, 79950245, 127920392, 159900490, 255840784, 319800980, 639601960, 1279203920]

約数ペア:

[(1, 1279203920), (2, 639601960), (4, 319800980), (5, 255840784), (8, 159900490), (10, 127920392), (16, 79950245), (20, 63960196), (29, 44110480), (40, 31980098), (58, 22055240), (80, 15990049), (116, 11027620), (145, 8822096), (232, 5513810), (290, 4411048), (464, 2756905), (580, 2205524), (1160, 1102762), (2320, 551381)]