815087185

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 1187923968

約数和(自身を除く): 372836783

約数列:

[1, 5, 11, 17, 31, 55, 61, 85, 155, 187, 305, 341, 461, 527, 671, 935, 1037, 1705, 1891, 2305, 2635, 3355, 5071, 5185, 5797, 7837, 9455, 11407, 14291, 20801, 25355, 28121, 28985, 32147, 39185, 57035, 71455, 86207, 104005, 140605, 157201, 160735, 242947, 309331, 353617, 431035, 478057, 786005, 871751, 1214735, 1546655, 1768085, 2390285, 2672417, 4358755, 5258627, 9589261, 13362085, 14819767, 26293135, 47946305, 74098835, 163017437, 815087185]

約数ペア:

[(1, 815087185), (5, 163017437), (11, 74098835), (17, 47946305), (31, 26293135), (55, 14819767), (61, 13362085), (85, 9589261), (155, 5258627), (187, 4358755), (305, 2672417), (341, 2390285), (461, 1768085), (527, 1546655), (671, 1214735), (935, 871751), (1037, 786005), (1705, 478057), (1891, 431035), (2305, 353617), (2635, 309331), (3355, 242947), (5071, 160735), (5185, 157201), (5797, 140605), (7837, 104005), (9455, 86207), (11407, 71455), (14291, 57035), (20801, 39185), (25355, 32147), (28121, 28985)]