20345976

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 144

約数和(自身を含む): 65800800

約数和(自身を除く): 45454824

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 73, 79, 84, 98, 126, 146, 147, 158, 168, 196, 219, 237, 252, 292, 294, 316, 392, 438, 441, 474, 504, 511, 553, 584, 588, 632, 657, 711, 876, 882, 948, 1022, 1106, 1176, 1314, 1422, 1533, 1659, 1752, 1764, 1896, 2044, 2212, 2628, 2844, 3066, 3318, 3528, 3577, 3871, 4088, 4424, 4599, 4977, 5256, 5688, 5767, 6132, 6636, 7154, 7742, 9198, 9954, 10731, 11534, 11613, 12264, 13272, 14308, 15484, 17301, 18396, 19908, 21462, 23068, 23226, 28616, 30968, 32193, 34602, 34839, 36792, 39816, 40369, 42924, 46136, 46452, 51903, 64386, 69204, 69678, 80738, 85848, 92904, 103806, 121107, 128772, 138408, 139356, 161476, 207612, 242214, 257544, 278712, 282583, 322952, 363321, 415224, 484428, 565166, 726642, 847749, 968856, 1130332, 1453284, 1695498, 2260664, 2543247, 2906568, 3390996, 5086494, 6781992, 10172988, 20345976]

約数ペア:

[(1, 20345976), (2, 10172988), (3, 6781992), (4, 5086494), (6, 3390996), (7, 2906568), (8, 2543247), (9, 2260664), (12, 1695498), (14, 1453284), (18, 1130332), (21, 968856), (24, 847749), (28, 726642), (36, 565166), (42, 484428), (49, 415224), (56, 363321), (63, 322952), (72, 282583), (73, 278712), (79, 257544), (84, 242214), (98, 207612), (126, 161476), (146, 139356), (147, 138408), (158, 128772), (168, 121107), (196, 103806), (219, 92904), (237, 85848), (252, 80738), (292, 69678), (294, 69204), (316, 64386), (392, 51903), (438, 46452), (441, 46136), (474, 42924), (504, 40369), (511, 39816), (553, 36792), (584, 34839), (588, 34602), (632, 32193), (657, 30968), (711, 28616), (876, 23226), (882, 23068), (948, 21462), (1022, 19908), (1106, 18396), (1176, 17301), (1314, 15484), (1422, 14308), (1533, 13272), (1659, 12264), (1752, 11613), (1764, 11534), (1896, 10731), (2044, 9954), (2212, 9198), (2628, 7742), (2844, 7154), (3066, 6636), (3318, 6132), (3528, 5767), (3577, 5688), (3871, 5256), (4088, 4977), (4424, 4599)]