64515920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5009}}^1$

素因数の和:5052

約数の個数: 80

約数和(自身を含む): 178917120

約数和(自身を除く): 114401200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 5009, 6440, 10018, 12880, 20036, 25045, 35063, 40072, 50090, 70126, 80144, 100180, 115207, 140252, 175315, 200360, 230414, 280504, 350630, 400720, 460828, 561008, 576035, 701260, 806449, 921656, 1152070, 1402520, 1612898, 1843312, 2304140, 2805040, 3225796, 4032245, 4608280, 6451592, 8064490, 9216560, 12903184, 16128980, 32257960, 64515920]

約数ペア:

[(1, 64515920), (2, 32257960), (4, 16128980), (5, 12903184), (7, 9216560), (8, 8064490), (10, 6451592), (14, 4608280), (16, 4032245), (20, 3225796), (23, 2805040), (28, 2304140), (35, 1843312), (40, 1612898), (46, 1402520), (56, 1152070), (70, 921656), (80, 806449), (92, 701260), (112, 576035), (115, 561008), (140, 460828), (161, 400720), (184, 350630), (230, 280504), (280, 230414), (322, 200360), (368, 175315), (460, 140252), (560, 115207), (644, 100180), (805, 80144), (920, 70126), (1288, 50090), (1610, 40072), (1840, 35063), (2576, 25045), (3220, 20036), (5009, 12880), (6440, 10018)]