18316960

素因数分解:

$2^5\times 5^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:733

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 25228640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 239, 478, 479, 956, 958, 1195, 1912, 1916, 2390, 2395, 3824, 3832, 4780, 4790, 7648, 7664, 9560, 9580, 15328, 19120, 19160, 38240, 38320, 76640, 114481, 228962, 457924, 572405, 915848, 1144810, 1831696, 2289620, 3663392, 4579240, 9158480, 18316960]

約数ペア:

[(1, 18316960), (2, 9158480), (4, 4579240), (5, 3663392), (8, 2289620), (10, 1831696), (16, 1144810), (20, 915848), (32, 572405), (40, 457924), (80, 228962), (160, 114481), (239, 76640), (478, 38320), (479, 38240), (956, 19160), (958, 19120), (1195, 15328), (1912, 9580), (1916, 9560), (2390, 7664), (2395, 7648), (3824, 4790), (3832, 4780)]