20606520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 68739840

約数和(自身を除く): 48133320

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, 220, 233, 264, 268, 330, 335, 402, 440, 466, 536, 660, 670, 699, 737, 804, 932, 1005, 1165, 1320, 1340, 1398, 1474, 1608, 1864, 2010, 2211, 2330, 2563, 2680, 2796, 2948, 3495, 3685, 4020, 4422, 4660, 5126, 5592, 5896, 6990, 7370, 7689, 8040, 8844, 9320, 10252, 11055, 12815, 13980, 14740, 15378, 15611, 17688, 20504, 22110, 25630, 27960, 29480, 30756, 31222, 38445, 44220, 46833, 51260, 61512, 62444, 76890, 78055, 88440, 93666, 102520, 124888, 153780, 156110, 171721, 187332, 234165, 307560, 312220, 343442, 374664, 468330, 515163, 624440, 686884, 858605, 936660, 1030326, 1373768, 1717210, 1873320, 2060652, 2575815, 3434420, 4121304, 5151630, 6868840, 10303260, 20606520]

約数ペア:

[(1, 20606520), (2, 10303260), (3, 6868840), (4, 5151630), (5, 4121304), (6, 3434420), (8, 2575815), (10, 2060652), (11, 1873320), (12, 1717210), (15, 1373768), (20, 1030326), (22, 936660), (24, 858605), (30, 686884), (33, 624440), (40, 515163), (44, 468330), (55, 374664), (60, 343442), (66, 312220), (67, 307560), (88, 234165), (110, 187332), (120, 171721), (132, 156110), (134, 153780), (165, 124888), (201, 102520), (220, 93666), (233, 88440), (264, 78055), (268, 76890), (330, 62444), (335, 61512), (402, 51260), (440, 46833), (466, 44220), (536, 38445), (660, 31222), (670, 30756), (699, 29480), (737, 27960), (804, 25630), (932, 22110), (1005, 20504), (1165, 17688), (1320, 15611), (1340, 15378), (1398, 14740), (1474, 13980), (1608, 12815), (1864, 11055), (2010, 10252), (2211, 9320), (2330, 8844), (2563, 8040), (2680, 7689), (2796, 7370), (2948, 6990), (3495, 5896), (3685, 5592), (4020, 5126), (4422, 4660)]