808045240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1\times {\mathrm{643}}^1$

素因数の和:1096

約数の個数: 64

約数和(自身を含む): 1846605600

約数和(自身を除く): 1038560360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 353, 356, 445, 643, 706, 712, 890, 1286, 1412, 1765, 1780, 2572, 2824, 3215, 3530, 3560, 5144, 6430, 7060, 12860, 14120, 25720, 31417, 57227, 62834, 114454, 125668, 157085, 226979, 228908, 251336, 286135, 314170, 453958, 457816, 572270, 628340, 907916, 1134895, 1144540, 1256680, 1815832, 2269790, 2289080, 4539580, 9079160, 20201131, 40402262, 80804524, 101005655, 161609048, 202011310, 404022620, 808045240]

約数ペア:

[(1, 808045240), (2, 404022620), (4, 202011310), (5, 161609048), (8, 101005655), (10, 80804524), (20, 40402262), (40, 20201131), (89, 9079160), (178, 4539580), (353, 2289080), (356, 2269790), (445, 1815832), (643, 1256680), (706, 1144540), (712, 1134895), (890, 907916), (1286, 628340), (1412, 572270), (1765, 457816), (1780, 453958), (2572, 314170), (2824, 286135), (3215, 251336), (3530, 228908), (3560, 226979), (5144, 157085), (6430, 125668), (7060, 114454), (12860, 62834), (14120, 57227), (25720, 31417)]