255738385

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 388800000

約数和(自身を除く): 133061615

約数列:

[1, 5, 7, 19, 29, 35, 89, 95, 133, 145, 149, 203, 445, 551, 623, 665, 745, 1015, 1043, 1691, 2581, 2755, 2831, 3115, 3857, 4321, 5215, 8455, 11837, 12905, 13261, 14155, 18067, 19285, 19817, 21605, 30247, 49039, 59185, 66305, 82099, 90335, 92827, 99085, 151235, 245195, 251959, 343273, 384569, 410495, 464135, 574693, 1259795, 1716365, 1763713, 1922845, 2691983, 2873465, 7306811, 8818565, 13459915, 36534055, 51147677, 255738385]

約数ペア:

[(1, 255738385), (5, 51147677), (7, 36534055), (19, 13459915), (29, 8818565), (35, 7306811), (89, 2873465), (95, 2691983), (133, 1922845), (145, 1763713), (149, 1716365), (203, 1259795), (445, 574693), (551, 464135), (623, 410495), (665, 384569), (745, 343273), (1015, 251959), (1043, 245195), (1691, 151235), (2581, 99085), (2755, 92827), (2831, 90335), (3115, 82099), (3857, 66305), (4321, 59185), (5215, 49039), (8455, 30247), (11837, 21605), (12905, 19817), (13261, 19285), (14155, 18067)]