178979640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{3001}}^1$

素因数の和:3093

約数の個数: 128

約数和(自身を含む): 622494720

約数和(自身を除く): 443515080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 71, 84, 105, 120, 140, 142, 168, 210, 213, 280, 284, 355, 420, 426, 497, 568, 710, 840, 852, 994, 1065, 1420, 1491, 1704, 1988, 2130, 2485, 2840, 2982, 3001, 3976, 4260, 4970, 5964, 6002, 7455, 8520, 9003, 9940, 11928, 12004, 14910, 15005, 18006, 19880, 21007, 24008, 29820, 30010, 36012, 42014, 45015, 59640, 60020, 63021, 72024, 84028, 90030, 105035, 120040, 126042, 168056, 180060, 210070, 213071, 252084, 315105, 360120, 420140, 426142, 504168, 630210, 639213, 840280, 852284, 1065355, 1260420, 1278426, 1491497, 1704568, 2130710, 2520840, 2556852, 2982994, 3196065, 4261420, 4474491, 5113704, 5965988, 6392130, 7457485, 8522840, 8948982, 11931976, 12784260, 14914970, 17897964, 22372455, 25568520, 29829940, 35795928, 44744910, 59659880, 89489820, 178979640]

約数ペア:

[(1, 178979640), (2, 89489820), (3, 59659880), (4, 44744910), (5, 35795928), (6, 29829940), (7, 25568520), (8, 22372455), (10, 17897964), (12, 14914970), (14, 12784260), (15, 11931976), (20, 8948982), (21, 8522840), (24, 7457485), (28, 6392130), (30, 5965988), (35, 5113704), (40, 4474491), (42, 4261420), (56, 3196065), (60, 2982994), (70, 2556852), (71, 2520840), (84, 2130710), (105, 1704568), (120, 1491497), (140, 1278426), (142, 1260420), (168, 1065355), (210, 852284), (213, 840280), (280, 639213), (284, 630210), (355, 504168), (420, 426142), (426, 420140), (497, 360120), (568, 315105), (710, 252084), (840, 213071), (852, 210070), (994, 180060), (1065, 168056), (1420, 126042), (1491, 120040), (1704, 105035), (1988, 90030), (2130, 84028), (2485, 72024), (2840, 63021), (2982, 60020), (3001, 59640), (3976, 45015), (4260, 42014), (4970, 36012), (5964, 30010), (6002, 29820), (7455, 24008), (8520, 21007), (9003, 19880), (9940, 18006), (11928, 15005), (12004, 14910)]