20805876

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 192

約数和(自身を含む): 69619200

約数和(自身を除く): 48813324

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 29, 36, 39, 42, 52, 54, 58, 63, 73, 78, 84, 87, 91, 108, 116, 117, 126, 146, 156, 174, 182, 189, 203, 219, 234, 252, 261, 273, 292, 348, 351, 364, 377, 378, 406, 438, 468, 511, 522, 546, 609, 657, 702, 754, 756, 783, 812, 819, 876, 949, 1022, 1044, 1092, 1131, 1218, 1314, 1404, 1508, 1533, 1566, 1638, 1827, 1898, 1971, 2044, 2117, 2262, 2436, 2457, 2628, 2639, 2847, 3066, 3132, 3276, 3393, 3654, 3796, 3942, 4234, 4524, 4599, 4914, 5278, 5481, 5694, 6132, 6351, 6643, 6786, 7308, 7884, 7917, 8468, 8541, 9198, 9828, 10179, 10556, 10962, 11388, 12702, 13286, 13572, 13797, 14819, 15834, 17082, 18396, 19053, 19929, 20358, 21924, 23751, 25404, 25623, 26572, 27521, 27594, 29638, 31668, 34164, 38106, 39858, 40716, 44457, 47502, 51246, 55042, 55188, 57159, 59276, 59787, 71253, 76212, 79716, 82563, 88914, 95004, 102492, 110084, 114318, 119574, 133371, 142506, 165126, 177828, 179361, 192647, 228636, 239148, 247689, 266742, 285012, 330252, 358722, 385294, 400113, 495378, 533484, 577941, 717444, 743067, 770588, 800226, 990756, 1155882, 1486134, 1600452, 1733823, 2311764, 2972268, 3467646, 5201469, 6935292, 10402938, 20805876]

約数ペア:

[(1, 20805876), (2, 10402938), (3, 6935292), (4, 5201469), (6, 3467646), (7, 2972268), (9, 2311764), (12, 1733823), (13, 1600452), (14, 1486134), (18, 1155882), (21, 990756), (26, 800226), (27, 770588), (28, 743067), (29, 717444), (36, 577941), (39, 533484), (42, 495378), (52, 400113), (54, 385294), (58, 358722), (63, 330252), (73, 285012), (78, 266742), (84, 247689), (87, 239148), (91, 228636), (108, 192647), (116, 179361), (117, 177828), (126, 165126), (146, 142506), (156, 133371), (174, 119574), (182, 114318), (189, 110084), (203, 102492), (219, 95004), (234, 88914), (252, 82563), (261, 79716), (273, 76212), (292, 71253), (348, 59787), (351, 59276), (364, 57159), (377, 55188), (378, 55042), (406, 51246), (438, 47502), (468, 44457), (511, 40716), (522, 39858), (546, 38106), (609, 34164), (657, 31668), (702, 29638), (754, 27594), (756, 27521), (783, 26572), (812, 25623), (819, 25404), (876, 23751), (949, 21924), (1022, 20358), (1044, 19929), (1092, 19053), (1131, 18396), (1218, 17082), (1314, 15834), (1404, 14819), (1508, 13797), (1533, 13572), (1566, 13286), (1638, 12702), (1827, 11388), (1898, 10962), (1971, 10556), (2044, 10179), (2117, 9828), (2262, 9198), (2436, 8541), (2457, 8468), (2628, 7917), (2639, 7884), (2847, 7308), (3066, 6786), (3132, 6643), (3276, 6351), (3393, 6132), (3654, 5694), (3796, 5481), (3942, 5278), (4234, 4914), (4524, 4599)]