491567385

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 853719552

約数和(自身を除く): 362152167

約数列:

[1, 3, 5, 15, 23, 37, 69, 97, 111, 115, 185, 291, 345, 397, 485, 555, 851, 1191, 1455, 1985, 2231, 2553, 3589, 4255, 5955, 6693, 9131, 10767, 11155, 12765, 14689, 17945, 27393, 33465, 38509, 44067, 45655, 53835, 73445, 82547, 115527, 136965, 192545, 220335, 247641, 337847, 412735, 577635, 885707, 1013541, 1238205, 1424833, 1689235, 2657121, 4274499, 4428535, 5067705, 7124165, 13285605, 21372495, 32771159, 98313477, 163855795, 491567385]

約数ペア:

[(1, 491567385), (3, 163855795), (5, 98313477), (15, 32771159), (23, 21372495), (37, 13285605), (69, 7124165), (97, 5067705), (111, 4428535), (115, 4274499), (185, 2657121), (291, 1689235), (345, 1424833), (397, 1238205), (485, 1013541), (555, 885707), (851, 577635), (1191, 412735), (1455, 337847), (1985, 247641), (2231, 220335), (2553, 192545), (3589, 136965), (4255, 115527), (5955, 82547), (6693, 73445), (9131, 53835), (10767, 45655), (11155, 44067), (12765, 38509), (14689, 33465), (17945, 27393)]