19900996872

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1\times {\mathrm{727}}^1$

素因数の和:1275

約数の個数: 128

約数和(自身を含む): 52898227200

約数和(自身を除く): 32997230328

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 173, 228, 346, 347, 456, 519, 692, 694, 727, 1038, 1041, 1384, 1388, 1454, 2076, 2082, 2181, 2776, 2908, 3287, 4152, 4164, 4362, 5816, 6574, 6593, 8328, 8724, 9861, 13148, 13186, 13813, 17448, 19722, 19779, 26296, 26372, 27626, 39444, 39558, 41439, 52744, 55252, 60031, 78888, 79116, 82878, 110504, 120062, 125771, 158232, 165756, 180093, 240124, 251542, 252269, 331512, 360186, 377313, 480248, 503084, 504538, 720372, 754626, 756807, 1006168, 1009076, 1140589, 1440744, 1509252, 1513614, 2018152, 2281178, 2389649, 3018504, 3027228, 3421767, 4562356, 4779298, 4793111, 6054456, 6843534, 7168947, 9124712, 9558596, 9586222, 13687068, 14337894, 14379333, 19117192, 19172444, 27374136, 28675788, 28758666, 38344888, 43642537, 57351576, 57517332, 87285074, 115034664, 130927611, 174570148, 261855222, 349140296, 523710444, 829208203, 1047420888, 1658416406, 2487624609, 3316832812, 4975249218, 6633665624, 9950498436, 19900996872]

約数ペア:

[(1, 19900996872), (2, 9950498436), (3, 6633665624), (4, 4975249218), (6, 3316832812), (8, 2487624609), (12, 1658416406), (19, 1047420888), (24, 829208203), (38, 523710444), (57, 349140296), (76, 261855222), (114, 174570148), (152, 130927611), (173, 115034664), (228, 87285074), (346, 57517332), (347, 57351576), (456, 43642537), (519, 38344888), (692, 28758666), (694, 28675788), (727, 27374136), (1038, 19172444), (1041, 19117192), (1384, 14379333), (1388, 14337894), (1454, 13687068), (2076, 9586222), (2082, 9558596), (2181, 9124712), (2776, 7168947), (2908, 6843534), (3287, 6054456), (4152, 4793111), (4164, 4779298), (4362, 4562356), (5816, 3421767), (6574, 3027228), (6593, 3018504), (8328, 2389649), (8724, 2281178), (9861, 2018152), (13148, 1513614), (13186, 1509252), (13813, 1440744), (17448, 1140589), (19722, 1009076), (19779, 1006168), (26296, 756807), (26372, 754626), (27626, 720372), (39444, 504538), (39558, 503084), (41439, 480248), (52744, 377313), (55252, 360186), (60031, 331512), (78888, 252269), (79116, 251542), (82878, 240124), (110504, 180093), (120062, 165756), (125771, 158232)]