65217920

素因数分解:

$2^7\times 5^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:763

約数の個数: 64

約数和(自身を含む): 157051440

約数和(自身を除く): 91833520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 181, 320, 362, 563, 640, 724, 905, 1126, 1448, 1810, 2252, 2815, 2896, 3620, 4504, 5630, 5792, 7240, 9008, 11260, 11584, 14480, 18016, 22520, 23168, 28960, 36032, 45040, 57920, 72064, 90080, 101903, 115840, 180160, 203806, 360320, 407612, 509515, 815224, 1019030, 1630448, 2038060, 3260896, 4076120, 6521792, 8152240, 13043584, 16304480, 32608960, 65217920]

約数ペア:

[(1, 65217920), (2, 32608960), (4, 16304480), (5, 13043584), (8, 8152240), (10, 6521792), (16, 4076120), (20, 3260896), (32, 2038060), (40, 1630448), (64, 1019030), (80, 815224), (128, 509515), (160, 407612), (181, 360320), (320, 203806), (362, 180160), (563, 115840), (640, 101903), (724, 90080), (905, 72064), (1126, 57920), (1448, 45040), (1810, 36032), (2252, 28960), (2815, 23168), (2896, 22520), (3620, 18016), (4504, 14480), (5630, 11584), (5792, 11260), (7240, 9008)]