28978272

素因数分解:

$2^5\times 3^2\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:676

約数の個数: 72

約数和(自身を含む): 82948320

約数和(自身を除く): 53970048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 239, 288, 421, 478, 717, 842, 956, 1263, 1434, 1684, 1912, 2151, 2526, 2868, 3368, 3789, 3824, 4302, 5052, 5736, 6736, 7578, 7648, 8604, 10104, 11472, 13472, 15156, 17208, 20208, 22944, 30312, 34416, 40416, 60624, 68832, 100619, 121248, 201238, 301857, 402476, 603714, 804952, 905571, 1207428, 1609904, 1811142, 2414856, 3219808, 3622284, 4829712, 7244568, 9659424, 14489136, 28978272]

約数ペア:

[(1, 28978272), (2, 14489136), (3, 9659424), (4, 7244568), (6, 4829712), (8, 3622284), (9, 3219808), (12, 2414856), (16, 1811142), (18, 1609904), (24, 1207428), (32, 905571), (36, 804952), (48, 603714), (72, 402476), (96, 301857), (144, 201238), (239, 121248), (288, 100619), (421, 68832), (478, 60624), (717, 40416), (842, 34416), (956, 30312), (1263, 22944), (1434, 20208), (1684, 17208), (1912, 15156), (2151, 13472), (2526, 11472), (2868, 10104), (3368, 8604), (3789, 7648), (3824, 7578), (4302, 6736), (5052, 5736)]