208710180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2333}}^1$

素因数の和:2426

約数の個数: 144

約数和(自身を含む): 734033664

約数和(自身を除く): 525323484

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 180, 210, 213, 252, 284, 315, 355, 420, 426, 497, 630, 639, 710, 852, 994, 1065, 1260, 1278, 1420, 1491, 1988, 2130, 2333, 2485, 2556, 2982, 3195, 4260, 4473, 4666, 4970, 5964, 6390, 6999, 7455, 8946, 9332, 9940, 11665, 12780, 13998, 14910, 16331, 17892, 20997, 22365, 23330, 27996, 29820, 32662, 34995, 41994, 44730, 46660, 48993, 65324, 69990, 81655, 83988, 89460, 97986, 104985, 139980, 146979, 163310, 165643, 195972, 209970, 244965, 293958, 326620, 331286, 419940, 489930, 496929, 587916, 662572, 734895, 828215, 979860, 993858, 1159501, 1469790, 1490787, 1656430, 1987716, 2319002, 2484645, 2939580, 2981574, 3312860, 3478503, 4638004, 4969290, 5797505, 5963148, 6957006, 7453935, 9938580, 10435509, 11595010, 13914012, 14907870, 17392515, 20871018, 23190020, 29815740, 34785030, 41742036, 52177545, 69570060, 104355090, 208710180]

約数ペア:

[(1, 208710180), (2, 104355090), (3, 69570060), (4, 52177545), (5, 41742036), (6, 34785030), (7, 29815740), (9, 23190020), (10, 20871018), (12, 17392515), (14, 14907870), (15, 13914012), (18, 11595010), (20, 10435509), (21, 9938580), (28, 7453935), (30, 6957006), (35, 5963148), (36, 5797505), (42, 4969290), (45, 4638004), (60, 3478503), (63, 3312860), (70, 2981574), (71, 2939580), (84, 2484645), (90, 2319002), (105, 1987716), (126, 1656430), (140, 1490787), (142, 1469790), (180, 1159501), (210, 993858), (213, 979860), (252, 828215), (284, 734895), (315, 662572), (355, 587916), (420, 496929), (426, 489930), (497, 419940), (630, 331286), (639, 326620), (710, 293958), (852, 244965), (994, 209970), (1065, 195972), (1260, 165643), (1278, 163310), (1420, 146979), (1491, 139980), (1988, 104985), (2130, 97986), (2333, 89460), (2485, 83988), (2556, 81655), (2982, 69990), (3195, 65324), (4260, 48993), (4473, 46660), (4666, 44730), (4970, 41994), (5964, 34995), (6390, 32662), (6999, 29820), (7455, 27996), (8946, 23330), (9332, 22365), (9940, 20997), (11665, 17892), (12780, 16331), (13998, 14910)]