989870672

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{285101}}^1$

素因数の和:285147

約数の個数: 40

約数和(自身を含む): 2262569472

約数和(自身を除く): 1272698800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 285101, 570202, 1140404, 1995707, 2280808, 3991414, 4561616, 7982828, 8838131, 15965656, 17676262, 31931312, 35352524, 61866917, 70705048, 123733834, 141410096, 247467668, 494935336, 989870672]

約数ペア:

[(1, 989870672), (2, 494935336), (4, 247467668), (7, 141410096), (8, 123733834), (14, 70705048), (16, 61866917), (28, 35352524), (31, 31931312), (56, 17676262), (62, 15965656), (112, 8838131), (124, 7982828), (217, 4561616), (248, 3991414), (434, 2280808), (496, 1995707), (868, 1140404), (1736, 570202), (3472, 285101)]