215504940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{3187}}^1$

素因数の和:3236

約数の個数: 144

約数和(自身を含む): 732678912

約数和(自身を除く): 517173972

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 420, 460, 483, 490, 588, 644, 690, 735, 805, 966, 980, 1127, 1380, 1470, 1610, 1932, 2254, 2415, 2940, 3187, 3220, 3381, 4508, 4830, 5635, 6374, 6762, 9561, 9660, 11270, 12748, 13524, 15935, 16905, 19122, 22309, 22540, 31870, 33810, 38244, 44618, 47805, 63740, 66927, 67620, 73301, 89236, 95610, 111545, 133854, 146602, 156163, 191220, 219903, 223090, 267708, 293204, 312326, 334635, 366505, 439806, 446180, 468489, 513107, 624652, 669270, 733010, 780815, 879612, 936978, 1026214, 1099515, 1338540, 1466020, 1539321, 1561630, 1873956, 2052428, 2199030, 2342445, 2565535, 3078642, 3123260, 3591749, 4398060, 4684890, 5131070, 6157284, 7183498, 7696605, 9369780, 10262140, 10775247, 14366996, 15393210, 17958745, 21550494, 30786420, 35917490, 43100988, 53876235, 71834980, 107752470, 215504940]

約数ペア:

[(1, 215504940), (2, 107752470), (3, 71834980), (4, 53876235), (5, 43100988), (6, 35917490), (7, 30786420), (10, 21550494), (12, 17958745), (14, 15393210), (15, 14366996), (20, 10775247), (21, 10262140), (23, 9369780), (28, 7696605), (30, 7183498), (35, 6157284), (42, 5131070), (46, 4684890), (49, 4398060), (60, 3591749), (69, 3123260), (70, 3078642), (84, 2565535), (92, 2342445), (98, 2199030), (105, 2052428), (115, 1873956), (138, 1561630), (140, 1539321), (147, 1466020), (161, 1338540), (196, 1099515), (210, 1026214), (230, 936978), (245, 879612), (276, 780815), (294, 733010), (322, 669270), (345, 624652), (420, 513107), (460, 468489), (483, 446180), (490, 439806), (588, 366505), (644, 334635), (690, 312326), (735, 293204), (805, 267708), (966, 223090), (980, 219903), (1127, 191220), (1380, 156163), (1470, 146602), (1610, 133854), (1932, 111545), (2254, 95610), (2415, 89236), (2940, 73301), (3187, 67620), (3220, 66927), (3381, 63740), (4508, 47805), (4830, 44618), (5635, 38244), (6374, 33810), (6762, 31870), (9561, 22540), (9660, 22309), (11270, 19122), (12748, 16905), (13524, 15935)]