128318868

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{823}}^1$

素因数の和:965

約数の個数: 72

約数和(自身を含む): 334728576

約数和(自身を除く): 206409708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 71, 122, 142, 183, 213, 244, 284, 366, 426, 549, 639, 732, 823, 852, 1098, 1278, 1646, 2196, 2469, 2556, 3292, 4331, 4938, 7407, 8662, 9876, 12993, 14814, 17324, 25986, 29628, 38979, 50203, 51972, 58433, 77958, 100406, 116866, 150609, 155916, 175299, 200812, 233732, 301218, 350598, 451827, 525897, 602436, 701196, 903654, 1051794, 1807308, 2103588, 3564413, 7128826, 10693239, 14257652, 21386478, 32079717, 42772956, 64159434, 128318868]

約数ペア:

[(1, 128318868), (2, 64159434), (3, 42772956), (4, 32079717), (6, 21386478), (9, 14257652), (12, 10693239), (18, 7128826), (36, 3564413), (61, 2103588), (71, 1807308), (122, 1051794), (142, 903654), (183, 701196), (213, 602436), (244, 525897), (284, 451827), (366, 350598), (426, 301218), (549, 233732), (639, 200812), (732, 175299), (823, 155916), (852, 150609), (1098, 116866), (1278, 100406), (1646, 77958), (2196, 58433), (2469, 51972), (2556, 50203), (3292, 38979), (4331, 29628), (4938, 25986), (7407, 17324), (8662, 14814), (9876, 12993)]