81573462

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^2$

素因数の和:210

約数の個数: 72

約数和(自身を含む): 191430720

約数和(自身を除く): 109857258

約数列:

[1, 2, 3, 6, 9, 18, 29, 31, 58, 62, 71, 87, 93, 142, 174, 186, 213, 261, 279, 426, 522, 558, 639, 899, 1278, 1798, 2059, 2201, 2697, 4118, 4402, 5041, 5394, 6177, 6603, 8091, 10082, 12354, 13206, 15123, 16182, 18531, 19809, 30246, 37062, 39618, 45369, 63829, 90738, 127658, 146189, 156271, 191487, 292378, 312542, 382974, 438567, 468813, 574461, 877134, 937626, 1148922, 1315701, 1406439, 2631402, 2812878, 4531859, 9063718, 13595577, 27191154, 40786731, 81573462]

約数ペア:

[(1, 81573462), (2, 40786731), (3, 27191154), (6, 13595577), (9, 9063718), (18, 4531859), (29, 2812878), (31, 2631402), (58, 1406439), (62, 1315701), (71, 1148922), (87, 937626), (93, 877134), (142, 574461), (174, 468813), (186, 438567), (213, 382974), (261, 312542), (279, 292378), (426, 191487), (522, 156271), (558, 146189), (639, 127658), (899, 90738), (1278, 63829), (1798, 45369), (2059, 39618), (2201, 37062), (2697, 30246), (4118, 19809), (4402, 18531), (5041, 16182), (5394, 15123), (6177, 13206), (6603, 12354), (8091, 10082)]