20155271440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{15767}}^1$

素因数の和:15857

約数の個数: 120

約数和(自身を含む): 51090212160

約数和(自身を除く): 30934940720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 841, 1102, 1160, 1520, 1682, 2204, 2320, 2755, 3364, 4205, 4408, 5510, 6728, 8410, 8816, 11020, 13456, 15767, 15979, 16820, 22040, 31534, 31958, 33640, 44080, 63068, 63916, 67280, 78835, 79895, 126136, 127832, 157670, 159790, 252272, 255664, 299573, 315340, 319580, 457243, 599146, 630680, 639160, 914486, 1198292, 1261360, 1278320, 1497865, 1828972, 2286215, 2396584, 2995730, 3657944, 4572430, 4793168, 5991460, 7315888, 8687617, 9144860, 11982920, 13260047, 17375234, 18289720, 23965840, 26520094, 34750468, 36579440, 43438085, 53040188, 66300235, 69500936, 86876170, 106080376, 132600470, 139001872, 173752340, 212160752, 251940893, 265200940, 347504680, 503881786, 530401880, 695009360, 1007763572, 1060803760, 1259704465, 2015527144, 2519408930, 4031054288, 5038817860, 10077635720, 20155271440]

約数ペア:

[(1, 20155271440), (2, 10077635720), (4, 5038817860), (5, 4031054288), (8, 2519408930), (10, 2015527144), (16, 1259704465), (19, 1060803760), (20, 1007763572), (29, 695009360), (38, 530401880), (40, 503881786), (58, 347504680), (76, 265200940), (80, 251940893), (95, 212160752), (116, 173752340), (145, 139001872), (152, 132600470), (190, 106080376), (232, 86876170), (290, 69500936), (304, 66300235), (380, 53040188), (464, 43438085), (551, 36579440), (580, 34750468), (760, 26520094), (841, 23965840), (1102, 18289720), (1160, 17375234), (1520, 13260047), (1682, 11982920), (2204, 9144860), (2320, 8687617), (2755, 7315888), (3364, 5991460), (4205, 4793168), (4408, 4572430), (5510, 3657944), (6728, 2995730), (8410, 2396584), (8816, 2286215), (11020, 1828972), (13456, 1497865), (15767, 1278320), (15979, 1261360), (16820, 1198292), (22040, 914486), (31534, 639160), (31958, 630680), (33640, 599146), (44080, 457243), (63068, 319580), (63916, 315340), (67280, 299573), (78835, 255664), (79895, 252272), (126136, 159790), (127832, 157670)]