39967760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:648

約数の個数: 80

約数和(自身を含む): 107136000

約数和(自身を除く): 67168240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 149, 280, 298, 479, 560, 596, 745, 958, 1043, 1192, 1490, 1916, 2086, 2384, 2395, 2980, 3353, 3832, 4172, 4790, 5215, 5960, 6706, 7664, 8344, 9580, 10430, 11920, 13412, 16688, 16765, 19160, 20860, 26824, 33530, 38320, 41720, 53648, 67060, 71371, 83440, 134120, 142742, 268240, 285484, 356855, 499597, 570968, 713710, 999194, 1141936, 1427420, 1998388, 2497985, 2854840, 3996776, 4995970, 5709680, 7993552, 9991940, 19983880, 39967760]

約数ペア:

[(1, 39967760), (2, 19983880), (4, 9991940), (5, 7993552), (7, 5709680), (8, 4995970), (10, 3996776), (14, 2854840), (16, 2497985), (20, 1998388), (28, 1427420), (35, 1141936), (40, 999194), (56, 713710), (70, 570968), (80, 499597), (112, 356855), (140, 285484), (149, 268240), (280, 142742), (298, 134120), (479, 83440), (560, 71371), (596, 67060), (745, 53648), (958, 41720), (1043, 38320), (1192, 33530), (1490, 26824), (1916, 20860), (2086, 19160), (2384, 16765), (2395, 16688), (2980, 13412), (3353, 11920), (3832, 10430), (4172, 9580), (4790, 8344), (5215, 7664), (5960, 6706)]