28213260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1091}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 79252992

約数和(自身を除く): 51039732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1091, 1293, 1724, 2155, 2182, 2586, 3273, 4310, 4364, 5172, 5455, 6465, 6546, 8620, 10910, 12930, 13092, 16365, 21820, 25860, 32730, 65460, 470221, 940442, 1410663, 1880884, 2351105, 2821326, 4702210, 5642652, 7053315, 9404420, 14106630, 28213260]

約数ペア:

[(1, 28213260), (2, 14106630), (3, 9404420), (4, 7053315), (5, 5642652), (6, 4702210), (10, 2821326), (12, 2351105), (15, 1880884), (20, 1410663), (30, 940442), (60, 470221), (431, 65460), (862, 32730), (1091, 25860), (1293, 21820), (1724, 16365), (2155, 13092), (2182, 12930), (2586, 10910), (3273, 8620), (4310, 6546), (4364, 6465), (5172, 5455)]