129150420

素因数分解:

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

素因数の和:222

約数の個数: 144

約数和(自身を含む): 426056064

約数和(自身を除く): 296905644

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 71, 84, 105, 122, 140, 142, 183, 210, 213, 244, 284, 305, 355, 366, 420, 426, 427, 497, 610, 710, 732, 852, 854, 915, 994, 1065, 1220, 1281, 1420, 1491, 1708, 1830, 1988, 2130, 2135, 2485, 2562, 2982, 3660, 4260, 4270, 4331, 4970, 5041, 5124, 5964, 6405, 7455, 8540, 8662, 9940, 10082, 12810, 12993, 14910, 15123, 17324, 20164, 21655, 25205, 25620, 25986, 29820, 30246, 30317, 35287, 43310, 50410, 51972, 60492, 60634, 64965, 70574, 75615, 86620, 90951, 100820, 105861, 121268, 129930, 141148, 151230, 151585, 176435, 181902, 211722, 259860, 302460, 303170, 307501, 352870, 363804, 423444, 454755, 529305, 606340, 615002, 705740, 909510, 922503, 1058610, 1230004, 1537505, 1819020, 1845006, 2117220, 2152507, 3075010, 3690012, 4305014, 4612515, 6150020, 6457521, 8610028, 9225030, 10762535, 12915042, 18450060, 21525070, 25830084, 32287605, 43050140, 64575210, 129150420]

約数ペア:

[(1, 129150420), (2, 64575210), (3, 43050140), (4, 32287605), (5, 25830084), (6, 21525070), (7, 18450060), (10, 12915042), (12, 10762535), (14, 9225030), (15, 8610028), (20, 6457521), (21, 6150020), (28, 4612515), (30, 4305014), (35, 3690012), (42, 3075010), (60, 2152507), (61, 2117220), (70, 1845006), (71, 1819020), (84, 1537505), (105, 1230004), (122, 1058610), (140, 922503), (142, 909510), (183, 705740), (210, 615002), (213, 606340), (244, 529305), (284, 454755), (305, 423444), (355, 363804), (366, 352870), (420, 307501), (426, 303170), (427, 302460), (497, 259860), (610, 211722), (710, 181902), (732, 176435), (852, 151585), (854, 151230), (915, 141148), (994, 129930), (1065, 121268), (1220, 105861), (1281, 100820), (1420, 90951), (1491, 86620), (1708, 75615), (1830, 70574), (1988, 64965), (2130, 60634), (2135, 60492), (2485, 51972), (2562, 50410), (2982, 43310), (3660, 35287), (4260, 30317), (4270, 30246), (4331, 29820), (4970, 25986), (5041, 25620), (5124, 25205), (5964, 21655), (6405, 20164), (7455, 17324), (8540, 15123), (8662, 14910), (9940, 12993), (10082, 12810)]