77081680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 194768784

約数和(自身を除く): 117687104

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 137, 208, 260, 274, 520, 541, 548, 685, 1040, 1082, 1096, 1370, 1781, 2164, 2192, 2705, 2740, 3562, 4328, 5410, 5480, 7033, 7124, 8656, 8905, 10820, 10960, 14066, 14248, 17810, 21640, 28132, 28496, 35165, 35620, 43280, 56264, 70330, 71240, 74117, 112528, 140660, 142480, 148234, 281320, 296468, 370585, 562640, 592936, 741170, 963521, 1185872, 1482340, 1927042, 2964680, 3854084, 4817605, 5929360, 7708168, 9635210, 15416336, 19270420, 38540840, 77081680]

約数ペア:

[(1, 77081680), (2, 38540840), (4, 19270420), (5, 15416336), (8, 9635210), (10, 7708168), (13, 5929360), (16, 4817605), (20, 3854084), (26, 2964680), (40, 1927042), (52, 1482340), (65, 1185872), (80, 963521), (104, 741170), (130, 592936), (137, 562640), (208, 370585), (260, 296468), (274, 281320), (520, 148234), (541, 142480), (548, 140660), (685, 112528), (1040, 74117), (1082, 71240), (1096, 70330), (1370, 56264), (1781, 43280), (2164, 35620), (2192, 35165), (2705, 28496), (2740, 28132), (3562, 21640), (4328, 17810), (5410, 14248), (5480, 14066), (7033, 10960), (7124, 10820), (8656, 8905)]