21192783160

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{3779}}^1$

素因数の和:4013

約数の個数: 128

約数和(自身を含む): 51601536000

約数和(自身を除く): 30408752840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 157, 188, 190, 235, 314, 376, 380, 470, 628, 760, 785, 893, 940, 1256, 1570, 1786, 1880, 2983, 3140, 3572, 3779, 4465, 5966, 6280, 7144, 7379, 7558, 8930, 11932, 14758, 14915, 15116, 17860, 18895, 23864, 29516, 29830, 30232, 35720, 36895, 37790, 59032, 59660, 71801, 73790, 75580, 119320, 140201, 143602, 147580, 151160, 177613, 280402, 287204, 295160, 355226, 359005, 560804, 574408, 593303, 701005, 710452, 718010, 888065, 1121608, 1186606, 1402010, 1420904, 1436020, 1776130, 2373212, 2804020, 2872040, 2966515, 3374647, 3552260, 4746424, 5608040, 5933030, 6749294, 7104520, 11272757, 11866060, 13498588, 16873235, 22545514, 23732120, 26997176, 27885241, 33746470, 45091028, 55770482, 56363785, 67492940, 90182056, 111540964, 112727570, 134985880, 139426205, 223081928, 225455140, 278852410, 450910280, 529819579, 557704820, 1059639158, 1115409640, 2119278316, 2649097895, 4238556632, 5298195790, 10596391580, 21192783160]

約数ペア:

[(1, 21192783160), (2, 10596391580), (4, 5298195790), (5, 4238556632), (8, 2649097895), (10, 2119278316), (19, 1115409640), (20, 1059639158), (38, 557704820), (40, 529819579), (47, 450910280), (76, 278852410), (94, 225455140), (95, 223081928), (152, 139426205), (157, 134985880), (188, 112727570), (190, 111540964), (235, 90182056), (314, 67492940), (376, 56363785), (380, 55770482), (470, 45091028), (628, 33746470), (760, 27885241), (785, 26997176), (893, 23732120), (940, 22545514), (1256, 16873235), (1570, 13498588), (1786, 11866060), (1880, 11272757), (2983, 7104520), (3140, 6749294), (3572, 5933030), (3779, 5608040), (4465, 4746424), (5966, 3552260), (6280, 3374647), (7144, 2966515), (7379, 2872040), (7558, 2804020), (8930, 2373212), (11932, 1776130), (14758, 1436020), (14915, 1420904), (15116, 1402010), (17860, 1186606), (18895, 1121608), (23864, 888065), (29516, 718010), (29830, 710452), (30232, 701005), (35720, 593303), (36895, 574408), (37790, 560804), (59032, 359005), (59660, 355226), (71801, 295160), (73790, 287204), (75580, 280402), (119320, 177613), (140201, 151160), (143602, 147580)]