20185549904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{358103}}^1$

素因数の和:358395

約数の個数: 40

約数和(自身を含む): 42273460992

約数和(自身を除く): 22087911088

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 271, 542, 1084, 2168, 3523, 4336, 7046, 14092, 28184, 56368, 358103, 716206, 1432412, 2864824, 4655339, 5729648, 9310678, 18621356, 37242712, 74485424, 97045913, 194091826, 388183652, 776367304, 1261596869, 1552734608, 2523193738, 5046387476, 10092774952, 20185549904]

約数ペア:

[(1, 20185549904), (2, 10092774952), (4, 5046387476), (8, 2523193738), (13, 1552734608), (16, 1261596869), (26, 776367304), (52, 388183652), (104, 194091826), (208, 97045913), (271, 74485424), (542, 37242712), (1084, 18621356), (2168, 9310678), (3523, 5729648), (4336, 4655339), (7046, 2864824), (14092, 1432412), (28184, 716206), (56368, 358103)]