19998816

素因数分解:

$2^5\times 3^1\times {\mathrm{41}}^1\times {\mathrm{5081}}^1$

素因数の和:5135

約数の個数: 48

約数和(自身を含む): 53787888

約数和(自身を除く): 33789072

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 82, 96, 123, 164, 246, 328, 492, 656, 984, 1312, 1968, 3936, 5081, 10162, 15243, 20324, 30486, 40648, 60972, 81296, 121944, 162592, 208321, 243888, 416642, 487776, 624963, 833284, 1249926, 1666568, 2499852, 3333136, 4999704, 6666272, 9999408, 19998816]

約数ペア:

[(1, 19998816), (2, 9999408), (3, 6666272), (4, 4999704), (6, 3333136), (8, 2499852), (12, 1666568), (16, 1249926), (24, 833284), (32, 624963), (41, 487776), (48, 416642), (82, 243888), (96, 208321), (123, 162592), (164, 121944), (246, 81296), (328, 60972), (492, 40648), (656, 30486), (984, 20324), (1312, 15243), (1968, 10162), (3936, 5081)]