28149912

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 90698400

約数和(自身を除く): 62548488

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 79, 84, 98, 101, 126, 147, 158, 168, 196, 202, 237, 252, 294, 303, 316, 392, 404, 441, 474, 504, 553, 588, 606, 632, 707, 711, 808, 882, 909, 948, 1106, 1176, 1212, 1414, 1422, 1659, 1764, 1818, 1896, 2121, 2212, 2424, 2828, 2844, 3318, 3528, 3636, 3871, 4242, 4424, 4949, 4977, 5656, 5688, 6363, 6636, 7272, 7742, 7979, 8484, 9898, 9954, 11613, 12726, 13272, 14847, 15484, 15958, 16968, 19796, 19908, 23226, 23937, 25452, 29694, 30968, 31916, 34839, 39592, 39816, 44541, 46452, 47874, 50904, 55853, 59388, 63832, 69678, 71811, 89082, 92904, 95748, 111706, 118776, 139356, 143622, 167559, 178164, 191496, 223412, 278712, 287244, 335118, 356328, 390971, 446824, 502677, 574488, 670236, 781942, 1005354, 1172913, 1340472, 1563884, 2010708, 2345826, 3127768, 3518739, 4021416, 4691652, 7037478, 9383304, 14074956, 28149912]

約数ペア:

[(1, 28149912), (2, 14074956), (3, 9383304), (4, 7037478), (6, 4691652), (7, 4021416), (8, 3518739), (9, 3127768), (12, 2345826), (14, 2010708), (18, 1563884), (21, 1340472), (24, 1172913), (28, 1005354), (36, 781942), (42, 670236), (49, 574488), (56, 502677), (63, 446824), (72, 390971), (79, 356328), (84, 335118), (98, 287244), (101, 278712), (126, 223412), (147, 191496), (158, 178164), (168, 167559), (196, 143622), (202, 139356), (237, 118776), (252, 111706), (294, 95748), (303, 92904), (316, 89082), (392, 71811), (404, 69678), (441, 63832), (474, 59388), (504, 55853), (553, 50904), (588, 47874), (606, 46452), (632, 44541), (707, 39816), (711, 39592), (808, 34839), (882, 31916), (909, 30968), (948, 29694), (1106, 25452), (1176, 23937), (1212, 23226), (1414, 19908), (1422, 19796), (1659, 16968), (1764, 15958), (1818, 15484), (1896, 14847), (2121, 13272), (2212, 12726), (2424, 11613), (2828, 9954), (2844, 9898), (3318, 8484), (3528, 7979), (3636, 7742), (3871, 7272), (4242, 6636), (4424, 6363), (4949, 5688), (4977, 5656)]