19907721648

素因数分解:

$2^4\times 3^3\times {\mathrm{971}}^1\times {\mathrm{47459}}^1$

素因数の和:48447

約数の個数: 80

約数和(自身を含む): 57202588800

約数和(自身を除く): 37294867152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432, 971, 1942, 2913, 3884, 5826, 7768, 8739, 11652, 15536, 17478, 23304, 26217, 34956, 46608, 47459, 52434, 69912, 94918, 104868, 139824, 142377, 189836, 209736, 284754, 379672, 419472, 427131, 569508, 759344, 854262, 1139016, 1281393, 1708524, 2278032, 2562786, 3417048, 5125572, 6834096, 10251144, 20502288, 46082689, 92165378, 138248067, 184330756, 276496134, 368661512, 414744201, 552992268, 737323024, 829488402, 1105984536, 1244232603, 1658976804, 2211969072, 2488465206, 3317953608, 4976930412, 6635907216, 9953860824, 19907721648]

約数ペア:

[(1, 19907721648), (2, 9953860824), (3, 6635907216), (4, 4976930412), (6, 3317953608), (8, 2488465206), (9, 2211969072), (12, 1658976804), (16, 1244232603), (18, 1105984536), (24, 829488402), (27, 737323024), (36, 552992268), (48, 414744201), (54, 368661512), (72, 276496134), (108, 184330756), (144, 138248067), (216, 92165378), (432, 46082689), (971, 20502288), (1942, 10251144), (2913, 6834096), (3884, 5125572), (5826, 3417048), (7768, 2562786), (8739, 2278032), (11652, 1708524), (15536, 1281393), (17478, 1139016), (23304, 854262), (26217, 759344), (34956, 569508), (46608, 427131), (47459, 419472), (52434, 379672), (69912, 284754), (94918, 209736), (104868, 189836), (139824, 142377)]