81027825

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 138384000

約数和(自身を除く): 57356175

約数列:

[1, 3, 5, 15, 25, 61, 75, 89, 183, 199, 267, 305, 445, 597, 915, 995, 1335, 1525, 2225, 2985, 4575, 4975, 5429, 6675, 12139, 14925, 16287, 17711, 27145, 36417, 53133, 60695, 81435, 88555, 135725, 182085, 265665, 303475, 407175, 442775, 910425, 1080371, 1328325, 3241113, 5401855, 16205565, 27009275, 81027825]

約数ペア:

[(1, 81027825), (3, 27009275), (5, 16205565), (15, 5401855), (25, 3241113), (61, 1328325), (75, 1080371), (89, 910425), (183, 442775), (199, 407175), (267, 303475), (305, 265665), (445, 182085), (597, 135725), (915, 88555), (995, 81435), (1335, 60695), (1525, 53133), (2225, 36417), (2985, 27145), (4575, 17711), (4975, 16287), (5429, 14925), (6675, 12139)]