131322640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 321408000

約数和(自身を除く): 190085360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 149, 184, 230, 298, 368, 460, 479, 596, 745, 920, 958, 1192, 1490, 1840, 1916, 2384, 2395, 2980, 3427, 3832, 4790, 5960, 6854, 7664, 9580, 11017, 11920, 13708, 17135, 19160, 22034, 27416, 34270, 38320, 44068, 54832, 55085, 68540, 71371, 88136, 110170, 137080, 142742, 176272, 220340, 274160, 285484, 356855, 440680, 570968, 713710, 881360, 1141936, 1427420, 1641533, 2854840, 3283066, 5709680, 6566132, 8207665, 13132264, 16415330, 26264528, 32830660, 65661320, 131322640]

約数ペア:

[(1, 131322640), (2, 65661320), (4, 32830660), (5, 26264528), (8, 16415330), (10, 13132264), (16, 8207665), (20, 6566132), (23, 5709680), (40, 3283066), (46, 2854840), (80, 1641533), (92, 1427420), (115, 1141936), (149, 881360), (184, 713710), (230, 570968), (298, 440680), (368, 356855), (460, 285484), (479, 274160), (596, 220340), (745, 176272), (920, 142742), (958, 137080), (1192, 110170), (1490, 88136), (1840, 71371), (1916, 68540), (2384, 55085), (2395, 54832), (2980, 44068), (3427, 38320), (3832, 34270), (4790, 27416), (5960, 22034), (6854, 19160), (7664, 17135), (9580, 13708), (11017, 11920)]