12898720

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4243}}^1$

素因数の和:4277

約数の個数: 48

約数和(自身を含む): 32084640

約数和(自身を除く): 19185920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 4243, 8486, 16972, 21215, 33944, 42430, 67888, 80617, 84860, 135776, 161234, 169720, 322468, 339440, 403085, 644936, 678880, 806170, 1289872, 1612340, 2579744, 3224680, 6449360, 12898720]

約数ペア:

[(1, 12898720), (2, 6449360), (4, 3224680), (5, 2579744), (8, 1612340), (10, 1289872), (16, 806170), (19, 678880), (20, 644936), (32, 403085), (38, 339440), (40, 322468), (76, 169720), (80, 161234), (95, 135776), (152, 84860), (160, 80617), (190, 67888), (304, 42430), (380, 33944), (608, 21215), (760, 16972), (1520, 8486), (3040, 4243)]