19924875

素因数分解:

$3^2\times 5^3\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 36504000

約数和(自身を除く): 16579125

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 89, 125, 199, 225, 267, 375, 445, 597, 801, 995, 1125, 1335, 1791, 2225, 2985, 4005, 4975, 6675, 8955, 11125, 14925, 17711, 20025, 24875, 33375, 44775, 53133, 74625, 88555, 100125, 159399, 223875, 265665, 442775, 796995, 1328325, 2213875, 3984975, 6641625, 19924875]

約数ペア:

[(1, 19924875), (3, 6641625), (5, 3984975), (9, 2213875), (15, 1328325), (25, 796995), (45, 442775), (75, 265665), (89, 223875), (125, 159399), (199, 100125), (225, 88555), (267, 74625), (375, 53133), (445, 44775), (597, 33375), (801, 24875), (995, 20025), (1125, 17711), (1335, 14925), (1791, 11125), (2225, 8955), (2985, 6675), (4005, 4975)]