18660840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 128

約数和(自身を含む): 62277120

約数和(自身を除く): 43616280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 67, 88, 110, 120, 132, 134, 165, 201, 211, 220, 264, 268, 330, 335, 402, 422, 440, 536, 633, 660, 670, 737, 804, 844, 1005, 1055, 1266, 1320, 1340, 1474, 1608, 1688, 2010, 2110, 2211, 2321, 2532, 2680, 2948, 3165, 3685, 4020, 4220, 4422, 4642, 5064, 5896, 6330, 6963, 7370, 8040, 8440, 8844, 9284, 11055, 11605, 12660, 13926, 14137, 14740, 17688, 18568, 22110, 23210, 25320, 27852, 28274, 29480, 34815, 42411, 44220, 46420, 55704, 56548, 69630, 70685, 84822, 88440, 92840, 113096, 139260, 141370, 155507, 169644, 212055, 278520, 282740, 311014, 339288, 424110, 466521, 565480, 622028, 777535, 848220, 933042, 1244056, 1555070, 1696440, 1866084, 2332605, 3110140, 3732168, 4665210, 6220280, 9330420, 18660840]

約数ペア:

[(1, 18660840), (2, 9330420), (3, 6220280), (4, 4665210), (5, 3732168), (6, 3110140), (8, 2332605), (10, 1866084), (11, 1696440), (12, 1555070), (15, 1244056), (20, 933042), (22, 848220), (24, 777535), (30, 622028), (33, 565480), (40, 466521), (44, 424110), (55, 339288), (60, 311014), (66, 282740), (67, 278520), (88, 212055), (110, 169644), (120, 155507), (132, 141370), (134, 139260), (165, 113096), (201, 92840), (211, 88440), (220, 84822), (264, 70685), (268, 69630), (330, 56548), (335, 55704), (402, 46420), (422, 44220), (440, 42411), (536, 34815), (633, 29480), (660, 28274), (670, 27852), (737, 25320), (804, 23210), (844, 22110), (1005, 18568), (1055, 17688), (1266, 14740), (1320, 14137), (1340, 13926), (1474, 12660), (1608, 11605), (1688, 11055), (2010, 9284), (2110, 8844), (2211, 8440), (2321, 8040), (2532, 7370), (2680, 6963), (2948, 6330), (3165, 5896), (3685, 5064), (4020, 4642), (4220, 4422)]