128707798720

素因数分解:

$2^6\times 5^1\times {\mathrm{907}}^1\times {\mathrm{443453}}^1$

素因数の和:444377

約数の個数: 56

約数和(自身を含む): 306824048784

約数和(自身を除く): 178116250064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 907, 1814, 3628, 4535, 7256, 9070, 14512, 18140, 29024, 36280, 58048, 72560, 145120, 290240, 443453, 886906, 1773812, 2217265, 3547624, 4434530, 7095248, 8869060, 14190496, 17738120, 28380992, 35476240, 70952480, 141904960, 402211871, 804423742, 1608847484, 2011059355, 3217694968, 4022118710, 6435389936, 8044237420, 12870779872, 16088474840, 25741559744, 32176949680, 64353899360, 128707798720]

約数ペア:

[(1, 128707798720), (2, 64353899360), (4, 32176949680), (5, 25741559744), (8, 16088474840), (10, 12870779872), (16, 8044237420), (20, 6435389936), (32, 4022118710), (40, 3217694968), (64, 2011059355), (80, 1608847484), (160, 804423742), (320, 402211871), (907, 141904960), (1814, 70952480), (3628, 35476240), (4535, 28380992), (7256, 17738120), (9070, 14190496), (14512, 8869060), (18140, 7095248), (29024, 4434530), (36280, 3547624), (58048, 2217265), (72560, 1773812), (145120, 886906), (290240, 443453)]