20401428

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1031}}^1$

素因数の和:1152

約数の個数: 48

約数和(自身を含む): 50972544

約数和(自身を除く): 30571116

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 97, 102, 194, 204, 291, 388, 582, 1031, 1164, 1649, 2062, 3093, 3298, 4124, 4947, 6186, 6596, 9894, 12372, 17527, 19788, 35054, 52581, 70108, 100007, 105162, 200014, 210324, 300021, 400028, 600042, 1200084, 1700119, 3400238, 5100357, 6800476, 10200714, 20401428]

約数ペア:

[(1, 20401428), (2, 10200714), (3, 6800476), (4, 5100357), (6, 3400238), (12, 1700119), (17, 1200084), (34, 600042), (51, 400028), (68, 300021), (97, 210324), (102, 200014), (194, 105162), (204, 100007), (291, 70108), (388, 52581), (582, 35054), (1031, 19788), (1164, 17527), (1649, 12372), (2062, 9894), (3093, 6596), (3298, 6186), (4124, 4947)]