28529460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{449}}^1$

素因数の和:817

約数の個数: 72

約数和(自身を含む): 86977800

約数和(自身を除く): 58448340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 353, 449, 706, 898, 1059, 1347, 1412, 1765, 1796, 2118, 2245, 2694, 3177, 3530, 4041, 4236, 4490, 5295, 5388, 6354, 6735, 7060, 8082, 8980, 10590, 12708, 13470, 15885, 16164, 20205, 21180, 26940, 31770, 40410, 63540, 80820, 158497, 316994, 475491, 633988, 792485, 950982, 1426473, 1584970, 1901964, 2377455, 2852946, 3169940, 4754910, 5705892, 7132365, 9509820, 14264730, 28529460]

約数ペア:

[(1, 28529460), (2, 14264730), (3, 9509820), (4, 7132365), (5, 5705892), (6, 4754910), (9, 3169940), (10, 2852946), (12, 2377455), (15, 1901964), (18, 1584970), (20, 1426473), (30, 950982), (36, 792485), (45, 633988), (60, 475491), (90, 316994), (180, 158497), (353, 80820), (449, 63540), (706, 40410), (898, 31770), (1059, 26940), (1347, 21180), (1412, 20205), (1765, 16164), (1796, 15885), (2118, 13470), (2245, 12708), (2694, 10590), (3177, 8980), (3530, 8082), (4041, 7060), (4236, 6735), (4490, 6354), (5295, 5388)]