28815960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{547}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 86803200

約数和(自身を除く): 57987240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 439, 547, 878, 1094, 1317, 1641, 1756, 2188, 2195, 2634, 2735, 3282, 3512, 4376, 4390, 5268, 5470, 6564, 6585, 8205, 8780, 10536, 10940, 13128, 13170, 16410, 17560, 21880, 26340, 32820, 52680, 65640, 240133, 480266, 720399, 960532, 1200665, 1440798, 1921064, 2401330, 2881596, 3601995, 4802660, 5763192, 7203990, 9605320, 14407980, 28815960]

約数ペア:

[(1, 28815960), (2, 14407980), (3, 9605320), (4, 7203990), (5, 5763192), (6, 4802660), (8, 3601995), (10, 2881596), (12, 2401330), (15, 1921064), (20, 1440798), (24, 1200665), (30, 960532), (40, 720399), (60, 480266), (120, 240133), (439, 65640), (547, 52680), (878, 32820), (1094, 26340), (1317, 21880), (1641, 17560), (1756, 16410), (2188, 13170), (2195, 13128), (2634, 10940), (2735, 10536), (3282, 8780), (3512, 8205), (4376, 6585), (4390, 6564), (5268, 5470)]