9919535495

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1\times {\mathrm{647}}^1$

素因数の和:1135

約数の個数: 32

約数和(自身を含む): 12194012160

約数和(自身を除く): 2274476665

約数列:

[1, 5, 89, 131, 263, 445, 647, 655, 1315, 3235, 11659, 23407, 34453, 57583, 58295, 84757, 117035, 170161, 172265, 287915, 423785, 850805, 3066317, 7543373, 15144329, 15331585, 22291091, 37716865, 75721645, 111455455, 1983907099, 9919535495]

約数ペア:

[(1, 9919535495), (5, 1983907099), (89, 111455455), (131, 75721645), (263, 37716865), (445, 22291091), (647, 15331585), (655, 15144329), (1315, 7543373), (3235, 3066317), (11659, 850805), (23407, 423785), (34453, 287915), (57583, 172265), (58295, 170161), (84757, 117035)]