217418720

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{25639}}^1$

素因数の和:25707

約数の個数: 48

約数和(自身を含む): 523363680

約数和(自身を除く): 305944960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 4240, 8480, 25639, 51278, 102556, 128195, 205112, 256390, 410224, 512780, 820448, 1025560, 1358867, 2051120, 2717734, 4102240, 5435468, 6794335, 10870936, 13588670, 21741872, 27177340, 43483744, 54354680, 108709360, 217418720]

約数ペア:

[(1, 217418720), (2, 108709360), (4, 54354680), (5, 43483744), (8, 27177340), (10, 21741872), (16, 13588670), (20, 10870936), (32, 6794335), (40, 5435468), (53, 4102240), (80, 2717734), (106, 2051120), (160, 1358867), (212, 1025560), (265, 820448), (424, 512780), (530, 410224), (848, 256390), (1060, 205112), (1696, 128195), (2120, 102556), (4240, 51278), (8480, 25639)]