81321942

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 182891520

約数和(自身を除く): 101569578

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 59, 78, 82, 118, 123, 177, 246, 354, 431, 533, 767, 862, 1066, 1293, 1534, 1599, 2301, 2419, 2586, 3198, 4602, 4838, 5603, 7257, 11206, 14514, 16809, 17671, 25429, 31447, 33618, 35342, 50858, 53013, 62894, 76287, 94341, 106026, 152574, 188682, 229723, 330577, 459446, 661154, 689169, 991731, 1042589, 1378338, 1983462, 2085178, 3127767, 6255534, 13553657, 27107314, 40660971, 81321942]

約数ペア:

[(1, 81321942), (2, 40660971), (3, 27107314), (6, 13553657), (13, 6255534), (26, 3127767), (39, 2085178), (41, 1983462), (59, 1378338), (78, 1042589), (82, 991731), (118, 689169), (123, 661154), (177, 459446), (246, 330577), (354, 229723), (431, 188682), (533, 152574), (767, 106026), (862, 94341), (1066, 76287), (1293, 62894), (1534, 53013), (1599, 50858), (2301, 35342), (2419, 33618), (2586, 31447), (3198, 25429), (4602, 17671), (4838, 16809), (5603, 14514), (7257, 11206)]