40791556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 72

約数和(自身を含む): 84682584

約数和(自身を除く): 43891028

約数列:

[1, 2, 4, 13, 19, 26, 38, 41, 52, 53, 76, 82, 106, 164, 212, 247, 361, 494, 533, 689, 722, 779, 988, 1007, 1066, 1378, 1444, 1558, 2014, 2132, 2173, 2756, 3116, 4028, 4346, 4693, 8692, 9386, 10127, 13091, 14801, 18772, 19133, 20254, 26182, 28249, 29602, 38266, 40508, 41287, 52364, 56498, 59204, 76532, 82574, 112996, 165148, 192413, 248729, 384826, 497458, 536731, 769652, 784453, 994916, 1073462, 1568906, 2146924, 3137812, 10197889, 20395778, 40791556]

約数ペア:

[(1, 40791556), (2, 20395778), (4, 10197889), (13, 3137812), (19, 2146924), (26, 1568906), (38, 1073462), (41, 994916), (52, 784453), (53, 769652), (76, 536731), (82, 497458), (106, 384826), (164, 248729), (212, 192413), (247, 165148), (361, 112996), (494, 82574), (533, 76532), (689, 59204), (722, 56498), (779, 52364), (988, 41287), (1007, 40508), (1066, 38266), (1378, 29602), (1444, 28249), (1558, 26182), (2014, 20254), (2132, 19133), (2173, 18772), (2756, 14801), (3116, 13091), (4028, 10127), (4346, 9386), (4693, 8692)]