20009220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 192

約数和(自身を含む): 71995392

約数和(自身を除く): 51986172

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 61, 66, 70, 71, 77, 84, 105, 110, 122, 132, 140, 142, 154, 165, 183, 210, 213, 220, 231, 244, 284, 305, 308, 330, 355, 366, 385, 420, 426, 427, 462, 497, 610, 660, 671, 710, 732, 770, 781, 852, 854, 915, 924, 994, 1065, 1155, 1220, 1281, 1342, 1420, 1491, 1540, 1562, 1708, 1830, 1988, 2013, 2130, 2135, 2310, 2343, 2485, 2562, 2684, 2982, 3124, 3355, 3660, 3905, 4026, 4260, 4270, 4331, 4620, 4686, 4697, 4970, 5124, 5467, 5964, 6405, 6710, 7455, 7810, 8052, 8540, 8662, 9372, 9394, 9940, 10065, 10934, 11715, 12810, 12993, 13420, 14091, 14910, 15620, 16401, 17324, 18788, 20130, 21655, 21868, 23430, 23485, 25620, 25986, 27335, 28182, 29820, 30317, 32802, 40260, 43310, 46860, 46970, 47641, 51972, 54670, 56364, 60634, 64965, 65604, 70455, 82005, 86620, 90951, 93940, 95282, 109340, 121268, 129930, 140910, 142923, 151585, 164010, 181902, 190564, 238205, 259860, 281820, 285846, 303170, 328020, 333487, 363804, 454755, 476410, 571692, 606340, 666974, 714615, 909510, 952820, 1000461, 1333948, 1429230, 1667435, 1819020, 2000922, 2858460, 3334870, 4001844, 5002305, 6669740, 10004610, 20009220]

約数ペア:

[(1, 20009220), (2, 10004610), (3, 6669740), (4, 5002305), (5, 4001844), (6, 3334870), (7, 2858460), (10, 2000922), (11, 1819020), (12, 1667435), (14, 1429230), (15, 1333948), (20, 1000461), (21, 952820), (22, 909510), (28, 714615), (30, 666974), (33, 606340), (35, 571692), (42, 476410), (44, 454755), (55, 363804), (60, 333487), (61, 328020), (66, 303170), (70, 285846), (71, 281820), (77, 259860), (84, 238205), (105, 190564), (110, 181902), (122, 164010), (132, 151585), (140, 142923), (142, 140910), (154, 129930), (165, 121268), (183, 109340), (210, 95282), (213, 93940), (220, 90951), (231, 86620), (244, 82005), (284, 70455), (305, 65604), (308, 64965), (330, 60634), (355, 56364), (366, 54670), (385, 51972), (420, 47641), (426, 46970), (427, 46860), (462, 43310), (497, 40260), (610, 32802), (660, 30317), (671, 29820), (710, 28182), (732, 27335), (770, 25986), (781, 25620), (852, 23485), (854, 23430), (915, 21868), (924, 21655), (994, 20130), (1065, 18788), (1155, 17324), (1220, 16401), (1281, 15620), (1342, 14910), (1420, 14091), (1491, 13420), (1540, 12993), (1562, 12810), (1708, 11715), (1830, 10934), (1988, 10065), (2013, 9940), (2130, 9394), (2135, 9372), (2310, 8662), (2343, 8540), (2485, 8052), (2562, 7810), (2684, 7455), (2982, 6710), (3124, 6405), (3355, 5964), (3660, 5467), (3905, 5124), (4026, 4970), (4260, 4697), (4270, 4686), (4331, 4620)]