18648728

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1031}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 44582400

約数和(自身を除く): 25933672

約数列:

[1, 2, 4, 7, 8, 14, 17, 19, 28, 34, 38, 56, 68, 76, 119, 133, 136, 152, 238, 266, 323, 476, 532, 646, 952, 1031, 1064, 1292, 2062, 2261, 2584, 4124, 4522, 7217, 8248, 9044, 14434, 17527, 18088, 19589, 28868, 35054, 39178, 57736, 70108, 78356, 122689, 137123, 140216, 156712, 245378, 274246, 333013, 490756, 548492, 666026, 981512, 1096984, 1332052, 2331091, 2664104, 4662182, 9324364, 18648728]

約数ペア:

[(1, 18648728), (2, 9324364), (4, 4662182), (7, 2664104), (8, 2331091), (14, 1332052), (17, 1096984), (19, 981512), (28, 666026), (34, 548492), (38, 490756), (56, 333013), (68, 274246), (76, 245378), (119, 156712), (133, 140216), (136, 137123), (152, 122689), (238, 78356), (266, 70108), (323, 57736), (476, 39178), (532, 35054), (646, 28868), (952, 19589), (1031, 18088), (1064, 17527), (1292, 14434), (2062, 9044), (2261, 8248), (2584, 7217), (4124, 4522)]