271981575

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 511745520

約数和(自身を除く): 239763945

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 73, 75, 87, 145, 219, 225, 261, 365, 435, 571, 657, 725, 1095, 1305, 1713, 1825, 2117, 2175, 2855, 3285, 5139, 5475, 6351, 6525, 8565, 10585, 14275, 16425, 16559, 19053, 25695, 31755, 41683, 42825, 49677, 52925, 82795, 95265, 125049, 128475, 149031, 158775, 208415, 248385, 375147, 413975, 476325, 625245, 745155, 1042075, 1208807, 1241925, 1875735, 3126225, 3626421, 3725775, 6044035, 9378675, 10879263, 18132105, 30220175, 54396315, 90660525, 271981575]

約数ペア:

[(1, 271981575), (3, 90660525), (5, 54396315), (9, 30220175), (15, 18132105), (25, 10879263), (29, 9378675), (45, 6044035), (73, 3725775), (75, 3626421), (87, 3126225), (145, 1875735), (219, 1241925), (225, 1208807), (261, 1042075), (365, 745155), (435, 625245), (571, 476325), (657, 413975), (725, 375147), (1095, 248385), (1305, 208415), (1713, 158775), (1825, 149031), (2117, 128475), (2175, 125049), (2855, 95265), (3285, 82795), (5139, 52925), (5475, 49677), (6351, 42825), (6525, 41683), (8565, 31755), (10585, 25695), (14275, 19053), (16425, 16559)]