20888784

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:114

約数の個数: 240

約数和(自身を含む): 75209472

約数和(自身を除く): 54320688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 23, 24, 28, 34, 36, 42, 46, 48, 51, 53, 56, 63, 68, 69, 72, 84, 92, 102, 106, 112, 119, 126, 136, 138, 144, 153, 159, 161, 168, 184, 204, 207, 212, 238, 252, 272, 276, 306, 318, 322, 336, 357, 368, 371, 391, 408, 414, 424, 476, 477, 483, 504, 552, 612, 636, 644, 714, 742, 782, 816, 828, 848, 901, 952, 954, 966, 1008, 1071, 1104, 1113, 1173, 1219, 1224, 1272, 1288, 1428, 1449, 1484, 1564, 1656, 1802, 1904, 1908, 1932, 2142, 2226, 2346, 2438, 2448, 2544, 2576, 2703, 2737, 2856, 2898, 2968, 3128, 3312, 3339, 3519, 3604, 3657, 3816, 3864, 4284, 4452, 4692, 4876, 5406, 5474, 5712, 5796, 5936, 6256, 6307, 6678, 7038, 7208, 7314, 7632, 7728, 8109, 8211, 8533, 8568, 8904, 9384, 9752, 10812, 10948, 10971, 11592, 12614, 13356, 14076, 14416, 14628, 16218, 16422, 17066, 17136, 17808, 18768, 18921, 19504, 20723, 21624, 21896, 21942, 23184, 24633, 25228, 25599, 26712, 28152, 29256, 32436, 32844, 34132, 37842, 41446, 43248, 43792, 43884, 49266, 50456, 51198, 53424, 56304, 56763, 58512, 62169, 64872, 65688, 68264, 75684, 76797, 82892, 87768, 98532, 100912, 102396, 113526, 124338, 129744, 131376, 136528, 145061, 151368, 153594, 165784, 175536, 186507, 197064, 204792, 227052, 248676, 290122, 302736, 307188, 331568, 373014, 394128, 409584, 435183, 454104, 497352, 580244, 614376, 746028, 870366, 908208, 994704, 1160488, 1228752, 1305549, 1492056, 1740732, 2320976, 2611098, 2984112, 3481464, 5222196, 6962928, 10444392, 20888784]

約数ペア:

[(1, 20888784), (2, 10444392), (3, 6962928), (4, 5222196), (6, 3481464), (7, 2984112), (8, 2611098), (9, 2320976), (12, 1740732), (14, 1492056), (16, 1305549), (17, 1228752), (18, 1160488), (21, 994704), (23, 908208), (24, 870366), (28, 746028), (34, 614376), (36, 580244), (42, 497352), (46, 454104), (48, 435183), (51, 409584), (53, 394128), (56, 373014), (63, 331568), (68, 307188), (69, 302736), (72, 290122), (84, 248676), (92, 227052), (102, 204792), (106, 197064), (112, 186507), (119, 175536), (126, 165784), (136, 153594), (138, 151368), (144, 145061), (153, 136528), (159, 131376), (161, 129744), (168, 124338), (184, 113526), (204, 102396), (207, 100912), (212, 98532), (238, 87768), (252, 82892), (272, 76797), (276, 75684), (306, 68264), (318, 65688), (322, 64872), (336, 62169), (357, 58512), (368, 56763), (371, 56304), (391, 53424), (408, 51198), (414, 50456), (424, 49266), (476, 43884), (477, 43792), (483, 43248), (504, 41446), (552, 37842), (612, 34132), (636, 32844), (644, 32436), (714, 29256), (742, 28152), (782, 26712), (816, 25599), (828, 25228), (848, 24633), (901, 23184), (952, 21942), (954, 21896), (966, 21624), (1008, 20723), (1071, 19504), (1104, 18921), (1113, 18768), (1173, 17808), (1219, 17136), (1224, 17066), (1272, 16422), (1288, 16218), (1428, 14628), (1449, 14416), (1484, 14076), (1564, 13356), (1656, 12614), (1802, 11592), (1904, 10971), (1908, 10948), (1932, 10812), (2142, 9752), (2226, 9384), (2346, 8904), (2438, 8568), (2448, 8533), (2544, 8211), (2576, 8109), (2703, 7728), (2737, 7632), (2856, 7314), (2898, 7208), (2968, 7038), (3128, 6678), (3312, 6307), (3339, 6256), (3519, 5936), (3604, 5796), (3657, 5712), (3816, 5474), (3864, 5406), (4284, 4876), (4452, 4692)]