19991567248

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{38501}}^1$

素因数の和:38632

約数の個数: 80

約数和(自身を含む): 43311977856

約数和(自身を除く): 23320410608

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 83, 92, 136, 166, 184, 272, 332, 368, 391, 664, 782, 1328, 1411, 1564, 1909, 2822, 3128, 3818, 5644, 6256, 7636, 11288, 15272, 22576, 30544, 32453, 38501, 64906, 77002, 129812, 154004, 259624, 308008, 519248, 616016, 654517, 885523, 1309034, 1771046, 2618068, 3195583, 3542092, 5236136, 6391166, 7084184, 10472272, 12782332, 14168368, 15053891, 25564664, 30107782, 51129328, 54324911, 60215564, 73498409, 108649822, 120431128, 146996818, 217299644, 240862256, 293993636, 434599288, 587987272, 869198576, 1175974544, 1249472953, 2498945906, 4997891812, 9995783624, 19991567248]

約数ペア:

[(1, 19991567248), (2, 9995783624), (4, 4997891812), (8, 2498945906), (16, 1249472953), (17, 1175974544), (23, 869198576), (34, 587987272), (46, 434599288), (68, 293993636), (83, 240862256), (92, 217299644), (136, 146996818), (166, 120431128), (184, 108649822), (272, 73498409), (332, 60215564), (368, 54324911), (391, 51129328), (664, 30107782), (782, 25564664), (1328, 15053891), (1411, 14168368), (1564, 12782332), (1909, 10472272), (2822, 7084184), (3128, 6391166), (3818, 5236136), (5644, 3542092), (6256, 3195583), (7636, 2618068), (11288, 1771046), (15272, 1309034), (22576, 885523), (30544, 654517), (32453, 616016), (38501, 519248), (64906, 308008), (77002, 259624), (129812, 154004)]