28736660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 63504000

約数和(自身を除く): 34767340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 230, 349, 358, 460, 698, 716, 895, 1396, 1745, 1790, 3490, 3580, 4117, 6980, 8027, 8234, 16054, 16468, 20585, 32108, 40135, 41170, 62471, 80270, 82340, 124942, 160540, 249884, 312355, 624710, 1249420, 1436833, 2873666, 5747332, 7184165, 14368330, 28736660]

約数ペア:

[(1, 28736660), (2, 14368330), (4, 7184165), (5, 5747332), (10, 2873666), (20, 1436833), (23, 1249420), (46, 624710), (92, 312355), (115, 249884), (179, 160540), (230, 124942), (349, 82340), (358, 80270), (460, 62471), (698, 41170), (716, 40135), (895, 32108), (1396, 20585), (1745, 16468), (1790, 16054), (3490, 8234), (3580, 8027), (4117, 6980)]