219521920

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5623}}^1$

素因数の和:5703

約数の個数: 64

約数和(自身を含む): 533492640

約数和(自身を除く): 313970720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1952, 2440, 3904, 4880, 5623, 7808, 9760, 11246, 19520, 22492, 28115, 39040, 44984, 56230, 89968, 112460, 179936, 224920, 343003, 359872, 449840, 686006, 719744, 899680, 1372012, 1715015, 1799360, 2744024, 3430030, 3598720, 5488048, 6860060, 10976096, 13720120, 21952192, 27440240, 43904384, 54880480, 109760960, 219521920]

約数ペア:

[(1, 219521920), (2, 109760960), (4, 54880480), (5, 43904384), (8, 27440240), (10, 21952192), (16, 13720120), (20, 10976096), (32, 6860060), (40, 5488048), (61, 3598720), (64, 3430030), (80, 2744024), (122, 1799360), (128, 1715015), (160, 1372012), (244, 899680), (305, 719744), (320, 686006), (488, 449840), (610, 359872), (640, 343003), (976, 224920), (1220, 179936), (1952, 112460), (2440, 89968), (3904, 56230), (4880, 44984), (5623, 39040), (7808, 28115), (9760, 22492), (11246, 19520)]