18887880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:415

約数の個数: 128

約数和(自身を含む): 63504000

約数和(自身を除く): 44616120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 41, 44, 55, 60, 66, 82, 88, 110, 120, 123, 132, 164, 165, 205, 220, 246, 264, 328, 330, 349, 410, 440, 451, 492, 615, 660, 698, 820, 902, 984, 1047, 1230, 1320, 1353, 1396, 1640, 1745, 1804, 2094, 2255, 2460, 2706, 2792, 3490, 3608, 3839, 4188, 4510, 4920, 5235, 5412, 6765, 6980, 7678, 8376, 9020, 10470, 10824, 11517, 13530, 13960, 14309, 15356, 18040, 19195, 20940, 23034, 27060, 28618, 30712, 38390, 41880, 42927, 46068, 54120, 57236, 57585, 71545, 76780, 85854, 92136, 114472, 115170, 143090, 153560, 157399, 171708, 214635, 230340, 286180, 314798, 343416, 429270, 460680, 472197, 572360, 629596, 786995, 858540, 944394, 1259192, 1573990, 1717080, 1888788, 2360985, 3147980, 3777576, 4721970, 6295960, 9443940, 18887880]

約数ペア:

[(1, 18887880), (2, 9443940), (3, 6295960), (4, 4721970), (5, 3777576), (6, 3147980), (8, 2360985), (10, 1888788), (11, 1717080), (12, 1573990), (15, 1259192), (20, 944394), (22, 858540), (24, 786995), (30, 629596), (33, 572360), (40, 472197), (41, 460680), (44, 429270), (55, 343416), (60, 314798), (66, 286180), (82, 230340), (88, 214635), (110, 171708), (120, 157399), (123, 153560), (132, 143090), (164, 115170), (165, 114472), (205, 92136), (220, 85854), (246, 76780), (264, 71545), (328, 57585), (330, 57236), (349, 54120), (410, 46068), (440, 42927), (451, 41880), (492, 38390), (615, 30712), (660, 28618), (698, 27060), (820, 23034), (902, 20940), (984, 19195), (1047, 18040), (1230, 15356), (1320, 14309), (1353, 13960), (1396, 13530), (1640, 11517), (1745, 10824), (1804, 10470), (2094, 9020), (2255, 8376), (2460, 7678), (2706, 6980), (2792, 6765), (3490, 5412), (3608, 5235), (3839, 4920), (4188, 4510)]