1325959280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{534661}}^1$

素因数の和:534705

約数の個数: 40

約数和(自身を含む): 3182308224

約数和(自身を除く): 1856348944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 534661, 1069322, 2138644, 2673305, 4277288, 5346610, 8554576, 10693220, 16574491, 21386440, 33148982, 42772880, 66297964, 82872455, 132595928, 165744910, 265191856, 331489820, 662979640, 1325959280]

約数ペア:

[(1, 1325959280), (2, 662979640), (4, 331489820), (5, 265191856), (8, 165744910), (10, 132595928), (16, 82872455), (20, 66297964), (31, 42772880), (40, 33148982), (62, 21386440), (80, 16574491), (124, 10693220), (155, 8554576), (248, 5346610), (310, 4277288), (496, 2673305), (620, 2138644), (1240, 1069322), (2480, 534661)]