178920840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6871}}^1$

素因数の和:6923

約数の個数: 128

約数和(自身を含む): 633323520

約数和(自身を除く): 454402680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 6871, 8680, 13020, 13742, 20613, 26040, 27484, 34355, 41226, 48097, 54968, 68710, 82452, 96194, 103065, 137420, 144291, 164904, 192388, 206130, 213001, 240485, 274840, 288582, 384776, 412260, 426002, 480970, 577164, 639003, 721455, 824520, 852004, 961940, 1065005, 1154328, 1278006, 1442910, 1491007, 1704008, 1923880, 2130010, 2556012, 2885820, 2982014, 3195015, 4260020, 4473021, 5112024, 5771640, 5964028, 6390030, 7455035, 8520040, 8946042, 11928056, 12780060, 14910070, 17892084, 22365105, 25560120, 29820140, 35784168, 44730210, 59640280, 89460420, 178920840]

約数ペア:

[(1, 178920840), (2, 89460420), (3, 59640280), (4, 44730210), (5, 35784168), (6, 29820140), (7, 25560120), (8, 22365105), (10, 17892084), (12, 14910070), (14, 12780060), (15, 11928056), (20, 8946042), (21, 8520040), (24, 7455035), (28, 6390030), (30, 5964028), (31, 5771640), (35, 5112024), (40, 4473021), (42, 4260020), (56, 3195015), (60, 2982014), (62, 2885820), (70, 2556012), (84, 2130010), (93, 1923880), (105, 1704008), (120, 1491007), (124, 1442910), (140, 1278006), (155, 1154328), (168, 1065005), (186, 961940), (210, 852004), (217, 824520), (248, 721455), (280, 639003), (310, 577164), (372, 480970), (420, 426002), (434, 412260), (465, 384776), (620, 288582), (651, 274840), (744, 240485), (840, 213001), (868, 206130), (930, 192388), (1085, 164904), (1240, 144291), (1302, 137420), (1736, 103065), (1860, 96194), (2170, 82452), (2604, 68710), (3255, 54968), (3720, 48097), (4340, 41226), (5208, 34355), (6510, 27484), (6871, 26040), (8680, 20613), (13020, 13742)]