40780688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:664

約数の個数: 80

約数和(自身を含む): 94993920

約数和(自身を除く): 54213232

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 208, 221, 247, 272, 304, 323, 442, 494, 607, 646, 884, 988, 1214, 1292, 1768, 1976, 2428, 2584, 3536, 3952, 4199, 4856, 5168, 7891, 8398, 9712, 10319, 11533, 15782, 16796, 20638, 23066, 31564, 33592, 41276, 46132, 63128, 67184, 82552, 92264, 126256, 134147, 149929, 165104, 184528, 196061, 268294, 299858, 392122, 536588, 599716, 784244, 1073176, 1199432, 1568488, 2146352, 2398864, 2548793, 3136976, 5097586, 10195172, 20390344, 40780688]

約数ペア:

[(1, 40780688), (2, 20390344), (4, 10195172), (8, 5097586), (13, 3136976), (16, 2548793), (17, 2398864), (19, 2146352), (26, 1568488), (34, 1199432), (38, 1073176), (52, 784244), (68, 599716), (76, 536588), (104, 392122), (136, 299858), (152, 268294), (208, 196061), (221, 184528), (247, 165104), (272, 149929), (304, 134147), (323, 126256), (442, 92264), (494, 82552), (607, 67184), (646, 63128), (884, 46132), (988, 41276), (1214, 33592), (1292, 31564), (1768, 23066), (1976, 20638), (2428, 16796), (2584, 15782), (3536, 11533), (3952, 10319), (4199, 9712), (4856, 8398), (5168, 7891)]