28181196

素因数分解:

$2^2\times 3^5\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 75013120

約数和(自身を除く): 46831924

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 79, 81, 108, 158, 162, 237, 243, 316, 324, 367, 474, 486, 711, 734, 948, 972, 1101, 1422, 1468, 2133, 2202, 2844, 3303, 4266, 4404, 6399, 6606, 8532, 9909, 12798, 13212, 19197, 19818, 25596, 28993, 29727, 38394, 39636, 57986, 59454, 76788, 86979, 89181, 115972, 118908, 173958, 178362, 260937, 347916, 356724, 521874, 782811, 1043748, 1565622, 2348433, 3131244, 4696866, 7045299, 9393732, 14090598, 28181196]

約数ペア:

[(1, 28181196), (2, 14090598), (3, 9393732), (4, 7045299), (6, 4696866), (9, 3131244), (12, 2348433), (18, 1565622), (27, 1043748), (36, 782811), (54, 521874), (79, 356724), (81, 347916), (108, 260937), (158, 178362), (162, 173958), (237, 118908), (243, 115972), (316, 89181), (324, 86979), (367, 76788), (474, 59454), (486, 57986), (711, 39636), (734, 38394), (948, 29727), (972, 28993), (1101, 25596), (1422, 19818), (1468, 19197), (2133, 13212), (2202, 12798), (2844, 9909), (3303, 8532), (4266, 6606), (4404, 6399)]